Israel-Gaza: Fears of war as violence escalates

The deadly exchange of fire between Palestinian militants in the Gaza Strip and the Israeli military has escalated significantly, with the UN fearing a "full-scale war".

More than 1,000 rockets have been fired by Palestinian militants, Israel says.

Israel has carried out hundreds of air strikes on Gaza, destroying three tower blocks and killing senior Hamas officials.

At least 53 Palestinians and six Israelis have been killed since Monday.

That includes 14 Palestinian children caught up in the conflict.

UN Secretary-General António Guterres said he was "gravely concerned" by the ongoing violence.