OAKLAND — Firefighters put out several tents and structures that caught fire at a homeless encampment Monday evening, authorities said.

At 8:19 p.m., firefighters responded to reports of an outside fire in the 3600 block of Peralta Street, Oakland Fire battalion chief Erik Logan said.

Eight firefighters responded aboard two engines, arriving at the scene underneath the Interstate 580 underpass and extinguishing flames within minutes.

Oakland police officers also responded to the fire at 8:26 p.m. to control traffic near the fire site, Oakland police Officer Delvin Fulmore said.

No injuries were reported, Logan said.

No estimate was immediately available on damages to property.

In January, community organizer Luis Ortega listed the encampment as one of several in Oakland that his group, Build Oakland For Everyone, regularly visited with care packages, blankets and meals.

Ortega said he saw between 25 and 40 people when his employer, Open Door Mission, donated sandwiches, potato chips and snacks at the site Monday afternoon.

“We were there, and we fed them today,” Ortega said. “There’s many of them, but that site’s the biggest one of the ones we visit. There’s another on Fifth (Street) and Brush, and another on East 12th (Street) and 23rd (Avenue). That one caught on fire about a month ago too.”

Contact George Kelly at 408-859-5180.