The San Francisco Police Department reports that one man suffered critical injuries yesterday evening in a stabbing at Hallidie Plaza in Union Square.

The victim, a 33-year-old man, was attacked by four to five unidentified men around 8:50 p.m. Wednesday, December 12th, the department's report states. The victim sustained multiple stab wounds to the torso and was transported to a local hospital.

We'll update this story if and when the SFPD releases further information.

Anyone with information about this incident can call the SFPD's anonymous tip line at 415-575-4444 or Text a Tip to TIP411 with "SFPD" at the beginning of the message.

Here’s why we usually don’t include suspect descriptions in crime reports.