The fragile ceasefire has held since it began on Jan. 19, even as Israeli strikes have killed dozens of Palestinians. Israel says it has struck Palestinians who approached its troops, entered unauthorized areas or otherwise violated the terms of the truce.

Israeli fire has killed eight Palestinians in the Gaza Strip and three more in the occupied West Bank over the past 24 hours, Palestinian officials said Tuesday, even as a fragile ceasefire with Hamas in Gaza has largely held since late January.

An Israeli air strike killed four Palestinians in Gaza on Tuesday, the territory's civil emergency service said, as Arab mediators and the United States tried to hammer out differences between Hamas and Israel over a January 19 ceasefire agreement.