"Civil defence teams recovered 11 bodies last night and this morning following the Israeli bombing that targeted a residential house ... in Jabalia," Mohammed al-Mughayyir, an official with the agency, told AFP.

"This is in addition to the 12 victims recovered at the time of the attack yesterday," he added.

Gaza's northern area of Jabalia has repeatedly been a focus Israel's military offensive since the start of the war on October 7, 2023 following Hamas's attack on Israel.

The military has returned to the district several times after announcing it had been cleared of militants, saying Hamas fighters had regrouped there.

In another strike in the area on Thursday, Israel hit what was previously a police station, rescuers said.

The toll from that attack has risen to 11, Mughayyir said, after initially announcing that nine people had been killed.

The military said on Thursday that it had struck a Hamas "command and control centre" in the area of Jabalia, without specifying the target.

Israeli strikes continued on Friday, with the civil defence agency reporting that at least five people -- a couple and their three children -- had been killed when their tent was struck in the Al-Mawasi area of the southern city of Khan Yunis.

Agency spokesman Mahmud Bassal said that the deceased woman had been pregnant.

Since Israel resumed its offensive on March 18 after the collapse of a two-month ceasefire with Hamas, at least 1,978 people have been killed in Gaza, bringing the overall death toll of the war to 51,355, according to the Hamas-run territory's health ministry.

Hamas's October 2023 attack on Israel resulted in the deaths of 1,218 people, mostly civilians, according to an AFP count based on official Israeli figures.

During the attack, Palestinian militants also abducted 251 people to Gaza, 58 of whom are still held captive there, including 34 the Israeli military says are dead.

Israeli officials and the military say consistent military pressure in Gaza is required to secure the release of the remaining hostages.