A man who was visiting San Francisco from New Zealand was killed Monday afternoon, after a motorcyclist struck him on a Union Square street.

According to the San Francisco Police Department, the collision occurred at 4:08 p.m. Monday, at the intersection of Stockton and Geary Streets.

Police say that a 32-year-old man piloting a Harley-Davidson Dyna Glide motorcycle struck two pedestrians: A 60-year-old man, and a 53-year-old woman.

The male victim suffered severe head trauma, and was pronounced dead, police say. According to a spokesperson with the San Francisco Medical Examiner's office, the deceased was identified as Hastings, New Zealand resident William Tims.

The woman was also seriously hurt, police say. She was transported to an area hospital for treatment of her injuries, but an update on her condition was not available at publication time.

Citing the ongoing investigation, an SFPD spokesperson declined to give further details on the case, including who they believe had the right of way prior to the collision, or if the motorcyclist has been arrested or cited in the crash.