JERUSALEM (Reuters) - An Israeli official said on Thursday there is an agreement for a comprehensive Gaza ceasefire starting on Friday.

In Gaza, there was no immediate confirmation from Hamas and other Palestinian militant groups that they had agreed to halt 10 days of cross-border warfare.

"There is an agreement for a ceasefire beginning tomorrow. I believe it is six in the morning (0300 GMT)," said the official, who asked not to be identified. The official said Israeli leaders approved a truce after a senior Israeli delegation held talks in Egypt.

(Reporting by Dan Williams, Writing by Jeffrey Heller, Editing by Ari Rabinovitch)