Red Sea tensions simmer as all sides warn of possible further attacks

UK says west will back words with action as Houthis threaten reprisals and Hezbollah says all navigation in area is in danger

• Middle East crisis – live updates

Tensions remained high in the Middle East on Sunday as western leaders, the Houthis and their allies all warned of possible further action in the aftermath of Friday’s US-UK bombing of rebel-held areas in Yemen.

As initial briefings from the US suggested that only about a quarter of the Houthis’ missile and drone attack capability had been destroyed, reports emerged of two boats trying to threaten a merchant ship in the southern Red Sea.