By Nidal al-Mughrabi and Steven Scheer CAIRO/JERUSALEM, Feb 15 (Reuters) - At least nine Palestinians were killed in Israeli airstrikes in the northern and southern Gaza Strip on Sunday, Palestinian civil defence and health officials said, in what Israel's military called a response to Hamas ceasefire violations.

Add Yahoo as a preferred source to see more of our stories on Google. At least 17 Palestinians have been killed in Israeli strikes in Gaza, hospitals say.

Israel killed at least 32 Palestinians in a wave of strikes in Gaza targeting Hamas operatives and infrastructure, stemming from what it said is blatant cease-fire violations by the terror group and putting the tenuous peace deal on shakier ground.