Operations at a Red Sea port in Yemen used for aid imports have fallen to about a quarter of its capacity, a UN official said on Tuesday, adding it was not certain that a Gaza ceasefire would end attacks between the Iran-backed Houthis and Israel.

Yemen's Houthi rebels have signaled they will limit their attacks in the Red Sea corridor to only Israeli-affiliated ships as a ceasefire in the Gaza Strip took hold. The Houthis made the announcement in an email sent to shippers and others on Sunday.

Yemen's Houthi rebels signal they will limit attacks in the Red Sea corridor to Israeli-affiliated ships.