SEATTLE (AP) — A man went on a two-day string of random stabbings in downtown Seattle, wounding nine people — five of them Friday afternoon, police said.

The Seattle Police Department said on social media that five people were stabbed Friday afternoon in Seattle’s Chinatown-International district.

Four of the victims were taken to Harborview Medical Center in Seattle, and one victim was treated at the scene and released.

A Harborview spokesman confirmed four victims were in hospital and said all were in critical condition.

One person was arrested, police said.

Five other people were stabbed in separate incidents in the same area starting early Thursday. Police said the 10th stabbing involved a robbery and it was unclear if it was related to the random attacks.