Egyptian President Abdel Fattah al-Sisi warned on Tuesday of the risk of the Gaza war expanding regionally in a way "difficult to imagine" during a meeting with US Secretary of State Antony Blinken, the Egyptian presidency said.

Blinken was in Cairo pushing for areas of possible progress on a Gaza ceasefire and hostage release deal in talks planned for later this week, with major areas of dispute left unresolved.