U.S. working 'around the clock' to avert Mideast escalation

The United States said it was working "around the clock" to avert an all-out war in the Middle East, as Israel remained on high alert Tuesday for potential Iranian retaliation for two high-profile killings.

US President Joe Biden, whose country has sent extra warships and fighter jets to the region in support of Israel, held crisis talks on Monday with his national security team.

Biden and his top diplomat Antony Blinken sought to calm tensions that have soared since a suspected Israeli...