Beverly Hills 90210 star Ian Ziering has said he had an "unsettling confrontation" with a group of bikers which "escalated into a physical altercation".
Video of the incident shared by TMZ showed the actor being punched in the face by a biker in a helmet, while others push and hit him before he is pursued across LA's Hollywood Boulevard by the group.
Addressing the altercation, the 59-year-old actor said he was in his car with his daughter in Los Angeles when his vehicle was "approached aggressively" by a rider on a mini motorbike.
When he got out of the car to assess the damage, the situation escalated and there was a physical confrontation.

Posting on Instagram to his 622,000 followers, he wrote: "Yesterday, I experienced an alarming incident involving a group of individuals on mini bikes.
"While stuck in traffic, my car was approached aggressively by one of these riders leading to an unsettling confrontation. In an attempt to assess any damage I exited my car."
He continued, "This action, unfortunately, escalated into a physical altercation, which I navigated to protect myself.
"I am relieved to report that my daughter and I are both completely unscathed, but the incident has left me deeply concerned about the growing boldness of such groups who disrupt public safety and peace."
Ziering said the incident highlights "a larger issue of hooliganism" on the streets of LA and called for city officials and law enforcement to take decisive action in response to such behaviour.
"I am thankful for the support of my family, friends, and fans during this time. It’s in challenging moments like these that the strength and unity of our community are most vital. Happy new year."
Ziering is best known for his role as Steve Sanders in the US series Beverly Hills 90210, which he played from 1990 to 2000.

He also starred as Fin Shepard in the Sharknado spoof film series from 2013 to 2018.
Ziering has two daughters, Mia Loren, 12, and Penna Mae, 10, with ex-wife Erin Ludwig.
Source: Press Association