GAZA CITY, Gaza Strip — Israeli aircraft conducted strikes early Tuesday on Islamic Jihad targets in the Gaza Strip, the Israeli military said, and residents reported blasts in the Palestinian enclave.

Witnesses said an explosion hit the top floor of an apartment building in Gaza City and a house in the southern city of Rafah. Palestinian media said several people were injured. There was no immediate confirmation from health authorities.

The airstrikes come as tension boils between Israel and militants in the Gaza Strip, which is ruled by the militant Hamas group.