SAN FRANCISCO (KGO) -- Police are investigating two violent attacks that occurred around the same time along Market Street Sunday morning.
A San Francisco police spokesperson said an assault happened near Market and Battery streets just before 8 a.m., but did not give details about the attack.
Around the same time, police received reports of a stabbing near 4th and Market just a half-mile away.
SFPD says three people were stabbed.
Officers detained a man at that scene.
Police believe he's a suspect in both attacks.
All four people were taken to the hospital.
There is no word on their condition
Anyone with information is asked to contact SFPD at 415-575-4444 or text a tip to TIP411 and begin the message with SFPD.
If you're on the ABC7 News app, click here to watch live