Kerry says he has held constructive talks with top Egyptian officials in a bid to end the conflict in the Gaza Strip. He says he will keep working for a ceasefire in coming days. He made the comments at a joint news conference with Egyptian Foreign Minister Sameh Shukri. Earlier, the US Secretary of State met with the Arab League chief. Hamas, last week, turned down a Cairo-proposed ceasefire plan. The Palestinian resistance movement demanded the release of scores of prisoners held in Israeli jails and an end to Israel's blockade of Gaza.