Iran’s armed forces warned Gulf countries against assisting the US military on Wednesday, hours after the United Arab Emirates announced it was severing economic ties with Tehran following new attacks on shipping. Ali Abdolahi, chief of staff of Iran’s Armed Forces, said Tehran was closely monitoring US military activity across the region, including the presence of a large number of aircraft and aerial refuelling tankers at regional bases. Key points and original sources are listed below.

• Iran’s armed forces warned Gulf countries against assisting the US military on Wednesday, hours after the United Arab Emirates announced it was severing economic ties with Tehran following new attacks on shipping. The Gulf is dotted with US military installati...S1

• Ali Abdolahi, chief of staff of Iran’s Armed Forces, said Tehran was closely monitoring US military activity across the region, including the presence of a large number of aircraft and aerial refuelling tankers at regional bases.S2