A woman is in life-threatening condition after a man stabbed her with an ice pick in SoMa on Friday afternoon. Police say the stabbing occurred for "no reason."

The incident took place at Fifth and Harrison streets around 3:50 p.m. The woman, 35, sustained critical injuries, though police did not disclose where on her body she was stabbed.

Police units on the scene arrested the suspect, a man in his 40s. The woman was transported to the hospital.

We'll have more updates on this developing story as they become available.

Anyone with information about this incident is asked to call SFPD's anonymous tip line at (415) 575-4444, or Text-a-Tip to TIP411 and begin the text message with 'SFPD.'