A 55-year-old man was arrested on suspicion of throwing some kind of incendiary device into a Chinatown construction site in San Francisco Thursday morning, according to police.
Officers responded to the 1000 block of Stockton Street around 9:40 a.m.
The construction site caught fire, but no injuries were reported.
“It caused some damage, but it wasn’t a structure fire or anything like that,” Officer Robert Rueca said today.
A damage estimate was not immediately available this morning.