Iranian Foreign Minister Abbas Araghchi arrived in Muscat to attend the fourth round of "indirect" talks between Iran and the United States over Tehran's nuclear program, according to the official Islamic Republic News Agency.

An Iranian official told CNN that recent indirect talks with the United States aimed at addressing Tehran’s nuclear program and lifting sanctions were “not genuine” from the American side and were likely designed from the outset as a “trap to draw the situation toward tension.

Suspected Islamist militants attacked a Nigerian army base and captured soldiers and ammunition during a raid in the insurgency-hit northeastern Borno state in the early hours of Monday, two security sources told Reuters.