On August 3, today, prisoner rights institutions and Palestinians all around the world are standing in solidarity with Gaza and Palestininian prisoners. This day is dedicated to highlighting Israeli crimes and violations of Palestinian prisoners’ rights and the continuing genocide in Gaza. The machinery of brutality that punishes and tortures in secrecy in Israeli prisons must be brought to light.

Since October 7, Palestinian detainees have faced horrific crimes. Shortly after Israeli Defence Minister Yoav Gallant announced that Israel was cutting off food, water, electricity and fuel to Gaza, effectively announcing the start of the genocide, Israeli National Security Minister Itamar Ben-Gvir launched his own war against Palestinian political prisoners and detainees held in Israeli jails and camps, by declaring a policy of “overcrowding”.

Since then, the Israeli army and security services have launched mass arrest campaigns, which have swelled the number of Palestinian citizens from the occupied West Bank and East Jerusalem to 9,800. At least 335 women and 680 children have been arrested. More than 3,400 have been put under administrative detention – that is, they are held indefinitely without charge. Among them, there are 22 women and 40 children. There has never been such a high number of administrative detainees since 1967.

Israel has also arrested an unknown number of Palestinians in the Gaza Strip, possibly exceeding thousands, according to our humble estimates. They are held under the 2002 “Incarceration of Unlawful Combatants Law”, which allows the Israeli army to detain people without issuing a detention order.

Under Ben-Gvir’s orders, the already grave conditions in Israeli prisons have been made even worse. The prison authorities sharply reduced food rations and water, closing down the small shops where Palestinian detainees could purchase food and other necessities. They also cut off water and power and even reduced the time allocated to using the restrooms. Prisoners are also prohibited from showering, which has resulted in the spread of  diseases, especially skin-related ones like scabies. There have been reports of Palestinian prisoners being deprived of medical care.

The systematic malnutrition and dehydration Palestinian prisoners are facing has taken a toll. The few that are released leave detention centres in horrific physical condition. Even the Israeli Supreme Court ruled that such weaponisation of food is “unacceptable”.

The use of torture, including rape and beatings, has become widespread. There have been shocking reports about prison guards urinating on detainees, torturing them with electric shock and using dogs to sexually assault them. There have been even testimonies of Israeli forces using detainees as human shields during combat in Gaza.

The systemic use of torture and other ill-treatment has predictably gone as far as extrajudicial killings. According to a recent report by Hebrew daily Haaretz, 48 Palestinians have died in detention centres. Among them is Thaer Abu Asab, who was brutally beaten by Israeli prison guards in Ketziot Prison, and died of his injuries at the age of 38.

According to Haaretz, 36 Gaza detainees have also died in the Sde Teiman camp. Testimonies from Israeli medical staff working at the detention centre have revealed horrific conditions for Palestinians held there. Detainees are reportedly often operated on without anaesthesia and some have had to have their limbs amputated because they were shackled even when sleeping or receiving treatment.

Palestinians who have been released have said what they were subject to was more horrific than what they had heard took place at Abu Ghraib and Guantanamo detention centres, where American forces torturedd and forcibly disappeared Arabs and other Muslim men. They have also testified that some detainees were killed through torture and severe beatings. One prisoner from Bethlehem, Moazaz Obaiat, who was released in July, has alleged that Ben-Gvir personally took part in torturing him.

Israeli authorities have denied prisoners visits by lawyers, family, and even medics, including the International Committee of the Red Cross. They have carried out acts of collective punishment, destroying the homes of their families, arresting their relatives and holding them hostage, and illegally transferring some to secret detention camps and military bases without disclosing their fate, which constitutes the crime of enforced disappearance.

Despite condemnations from various human rights orgaisations, Ben-Gvir and the rest of the Israeli governing coalition have doubled down on these policies. “[Prisoners] should be killed with a shot to the head and the bill to execute Palestinian prisoners must be passed in the third reading in the Knesset […] Until then, we will give them minimal food to survive. I don’t care,” Ben-Gvir said on July 1.

By using mass detention, Israel, the occupying power, has systematically destroyed Palestinian social, economic and psychological fabric since 1967. Over one million Palestinians have been arrested since then, thousands have been held hostage for extended periods under administrative detention and 255 detainees have died in Israeli prisons.

Israeli crimes against the Palestinians did not begin in October 2023, but are a continuation of a systematic process of ethnic cleansing, forced displacement and apartheid that began even before 1948.

But Israel’s colonial regime overlooks the Palestinian people’s resilience. Inspired by the experiences of the free nations of Ireland, South Africa and Vietnam, we draw strength from our determination to achieve our right to self-determination, freedom and independence.

This is why on this day, August 3, we urge the world to collectively protest against Israeli occupation crimes and racist laws and we call on governments to uphold their legal duties to prevent such crimes from happening. We also call on unions, universities, parliaments and political parties to effectively participate in large-scale events, demonstrations and digital campaigns in solidarity with Palestinian political prisoners.

The international community should hold the occupying power to account by imposing a complete arms embargo on it, applying economic sanctions, and suspending its UN membership.

They should also nullify bilateral agreements, and halt Israel’s participation in international forums and events until it abides by international law and human rights. The international community must compel Israel to protect civilians according to its obligations as an occupying power.

Israel must also reveal the identities and conditions of people it has forcibly disappeared. We demand an end to arbitrary and administrative detention policies. The bodies of those who have died inside and outside prisons must also be released, and all prisoners must receive legal protection.

Israel, the occupying power, is under the obligation to allow special rapporteurs, United Nations experts, and the International Criminal Court prosecutor to visit Palestine, inspect prisons and deliver justice for the victims, including material and moral compensation.

Israel must not be allowed to get away with these horrific crimes.

The views expressed in this article are the author’s own and do not necessarily reflect Al Jazeera’s editorial stance.