The chief of Hamas told Reuters on Tuesday that the Palestinian militant group was near a truce agreement with Israel, even as the deadly assault on Gaza continued and rockets were being fired into Israel.

Hamas officials are "close to reaching a truce agreement" with Israel and the group has delivered its response to Qatari mediators, Ismail Haniyeh said in a statement sent to Reuters by his aide.

The statement gave no more details, but a Hamas official told Al Jazeera TV that negotiations were centred on how long the truce would last, arrangements for delivery of aid into Gaza and the exchange of Israeli hostages held by Hamas for Palestinian prisoners in Israel.

Both sides would free women and children and details will be announced by Qatar, which is mediating in the negotiations, said the official, Issat el Reshiq.