New York - An Israeli air strike killed a United Nations teacher in Gaza on Wednesday, a UN spokesperson said.

Marwan Abu El Qumsan was in a car near the scene of a strike on the Palestinian territory.

The Arabic teacher at a UN school was killed and his brother severely injured in the blast, said Chris Gunness, a spokesperson for the UN Palestinian refugees agency, UNRWA.

Israel staged a second day of major air strikes on Gaza as part of a riposte to rocket attacks from the territory which it blames on Gaza's Hamas rulers and other militant organisations.

At least 16 people have been killed in Gaza and three Israelis killed in a rocket attack. - Sapa-AFP