Gunmen have opened fire on the home of Palestinian Prime Minister Ismail Haniya, as violence continues in Gaza.

It is unclear whether the target of the attack near Gaza City was Mr Haniya himself or his security guards. There is no word on casualties.

Earlier three more people were killed in continued fighting between Mr Haniya's radical Hamas group and the rival Fatah movement.

Clashes between the two factions have killed more than 50 since mid-May.

In one incident on Sunday, Hamas militants kidnapped an officer in a Fatah-linked security force and killed him by throwing him from the roof of a 15-storey building.

The incident sparked fresh clashes throughout Gaza City.

A Hamas preacher was killed by gunmen and a Hamas activist was thrown off another building.

A ceasefire agreed by Hamas and Fatah in May has broken down in the past week after a member of forces loyal to Fatah was killed.

Hamas - which won legislative elections last year - and Fatah formed a unity government in March, but the deal failed to end their rivalry.

PHOTO CAPTION

Houses destroyed during clashes between Hamas and Fatah gunmen