US blames group of Iran-backed militias for deadly drone attack in Jordan

A senior US government official says a group of Iran-backed militias was responsible for the deadly drone attack on a US base in Jordan.

Three US service members were killed in Sunday's attack at the outpost in northeastern Jordan near the border with Syria.

White House National Security Council spokesperson John Kirby said on Wednesday that Washington believes the attack was "planned, resourced, and facilitated by an umbrella group called the Islamic Resistance in Iraq."

Western media reports say the group, which contains multiple Iran-backed organizations, has repeatedly attacked US military bases in Iraq and Syria since the conflict between Israel and the Islamic group Hamas began last October.

The US Defense Department had said earlier that a pro-Iranian armed group, Kataib Hezbollah, may have been involved in the drone attack.

Kirby said Kataib Hezbollah is part of the umbrella group he named.

The spokesperson also said, "We will do what we need to do to make sure that those responsible are held properly accountable." He suggested multiple actions could be taken, saying that "the first thing you see won't be the last thing."