Welcome to our live coverage of the Charlie Kirk shooting.

Alleged shooter Tyler Robinson is “not co-operating” with officials as investigations into the assassination of the far-right activist continue.

Robinson, a 22-year-old from Utah, is being held without bail on several charges including aggravated murder, according to officials.

In a series of interviews on Sunday morning (US time), Utah Governor Spencer Cox said Robinson’s romantic partner, as well as his family are all co-operating with the FBI investigation into the shooting.

“It’s very clear to us and to the investigators that this was a person who was deeply indoctrinated with leftist ideology,” Mr Cox told the Wall Street Journal.

Mr Cox said Robinson had been living with his unidentified transgender partner at a home in Utah.

“The roommate was a romantic partner, a male transitioning to female,” he said.

The gunman fired a single, fatal shot killing Mr Kirk – a 31-year-old who rallied youth support for Mr Trump – during an appearance at a Utah university on Wednesday.