US Secretary of State Antony Blinken will hold talks in the United Arab Emirates and Saudi Arabia today before heading on to Israel after warning that the Gaza conflict could spread across the region without concerted peace efforts, while Israel vowed to continue fighting until Hamas was eliminated.

According to Reuters, Blinken was in Jordan and Qatar on Sunday at the start of a five-day diplomatic effort in the Middle East seeking to avert a wider war in the region. He is also due to visit the West Bank and Egypt this week.

“This is a moment of profound tension for the region. This is a conflict that could easily metastasize, causing even more insecurity and suffering,” Blinken told a press conference in Doha before heading to Abu Dhabi.

Blinken said he would tell Israeli officials that it is imperative they do more to prevent civilian casualties in Gaza and that Palestinian civilians must be allowed to return home and not be pressed to leave Gaza.

Jordan’s King Abdullah urged Blinken to use Washington’s influence over Israel to press it for an immediate ceasefire and warned of the “catastrophic repercussions” of Israel’s continued military campaign.