US President Joe Biden addressed the attack on US forces in the Jordanian-Syrian border area, carried out using a drone, which resulted in the deaths of three American soldiers and wounded dozens.

“We had a tough day last night in the Middle East. We lost three brave souls in an attack on one of our bases,” President Joe Biden said in South Carolina.

He then asked for a moment of silence and added: “And we shall respond.”

Defense Secretary Lloyd Austin expressed his profound outrage and deep sadness over the deaths. He vowed that the strike "would not go unanswered".

Earlier on Sunday morning, informed sources told Al Mayadeen's correspondent in Syria that "the drone attack targeted the al-Tanf Base on the Syrian-Jordanian-Iraqi border triangle, resulting in casualties among US forces inside the illegitimate base."

The sources mentioned that "the drones managed to bypass an advanced air defense system and penetrated the al-Tanf Base." They also noted that this attack came one day after the attacks on the Conoco base north of Deir Ezzor, which resulted in the injury of three soldiers.

Later, citing a US official, Reuters reported that the number of US soldiers injured in the drone attack in north East Jordan has risen to 34.

The United States Central Command (CENTCOM) announced on Sunday evening that three US soldiers had been killed, while at least 25 have been injured in northeastern Jordan near the Syrian border.

"On Jan. 28, three U.S. service members were killed and 25 injured from a one-way attack UAS that impacted at a base in northeast Jordan, near the Syria border," CENTCOM said before adding that the identity of those killed while deployed will not be revealed for 24 hours.