A man who set himself on fire outside the New York courthouse where former US President Donald Trump is on trial has died, Sky's US partner NBC News has said.
Maxwell Azzarello was "declared deceased by hospital staff", police told NBC News in a phone call early on Saturday, local time.
No specific time of death was given.
Mr Azzarello, in his mid-30s, from St Augustine in Florida, threw conspiracy theory pamphlets in the air before setting himself alight in a designated protest area for pro and anti-Trump demonstrators on Friday.
He took a canister out of his bag containing what is believed to have been an alcohol-based accelerant, before dousing himself in the fluid and setting himself ablaze, police said.
Officers and civilians ran into the protest area and tried to put out the flames using coats and fire extinguishers.
New York City fire commissioner Laura Kavanagh told reporters that Azzarello was taken to the burn unit at Weill Cornell Medical Centre, where he had been described as alive but in critical condition, NBC News said.
Four NYPD police officers suffered minor injuries from fire exposure, authorities said.
