Israel’s military operations against Hamas militants in Gaza are “expanding” ahead of an expected ground invasion, according to Israel Defense Forces officials.

“The operation is expanding,” IDF spokesperson Maj. Nir Dinar told POLITICO. Asked if that meant an increase of ground troops in Gaza, Dinar added “there were ground troops in Gaza yesterday.” He wouldn’t elaborate further.

Those remarks followed a Friday announcement by IDF spokesperson Rear Adm. Daniel Hagari, who said “in addition to the attacks that we carried out in recent days, ground forces are expanding their activity this evening.”