A$AP Rocky is seen at Pre-Grammy Gala And Salute To Industry Icons in Beverly Hills.

A Stockholm court on Wednesday convicted US rapper A$AP Rocky of assault and gave him a suspended sentence over a street brawl, a case that outraged fans and sparked a diplomatic spat with US President Donald Trump.

The 30-year-old rapper, whose real name is Rakim Mayers, and two members of his entourage were found guilty of assaulting a 19-year-old in a fight in central Stockholm on June 30.

The court rejected their claims they had acted in self-defence, but said a prison sentence was not warranted.

The three, who were in the Swedish capital for a concert, "assaulted the victim by hitting and kicking him as he lay on the ground," the court wrote in its verdict.

"The artist also threw the victim to the ground and stepped on his arm," it said.

Rapper felt 'scared'

At his first performance on Sunday following his release, in Anaheim in California, the rapper thanked fans and called the experience in Sweden "scary" and "humbling".

"I need y'all to keep praying for me," he told the crowd, saying he hoped he would not have to return to serve a jail sentence.

Brawl video

In one video clip of the brawl published by US celebrity news outlet TMZ, the rapper can be seen throwing a young man to the ground and aiming several punches at him while he is down.

Much of the trial also focused on whether a bottle was used as the plaintiff suffered cuts that medical examiners said seemed to be from glass.

The court ruled it was not proven that a bottle was used.

"There is no reason to fear that the accused are going to be repeat offenders," it said.

Agence France-Presse