Life-threatening injuries in Treasure Island stabbing

Photo: Google Maps A man was stabbed in the chest on the 1400 block of Gateview Avenue...

A man was hospitalized with life-threatening injuries after being stabbed in the chest on Treasure Island on Thursday, police said.

Officers found the victim, a 48-year-old man, on the 1400 block of Gateway Avenue at about 9 a.m. and took him to San Francisco General Hospital. Police arrested a 55-year-old man at the scene, and discovered a possible drug lab as well, officials said.

The stabbing is under investigation.

Hamed Aleaziz is a San Francisco Chronicle staff writer. E-mail: haleaziz@sfchronicle.com Twitter: @haleaziz