SAN FRANCISCO (KRON/BCN) — A large outside fire broke out Saturday morning near a homeless encampment in San Francisco’s Potrero Hill neighborhood, a Fire Department spokesman said.

The fire was first reported at 10:57 a.m. at the intersection of 15th and Carolina streets.

The cause and origin of the fire is under investigation, spokesman Jonathan Baxter said.

The fire was under control at 11:09 a.m. No one was injured and no structures were involved, Baxter said.