LOS ANGELES (CNS) — Several "suspicious" vegetation fires broke out Monday in the Lincoln Heights area, affecting nearby Metro train service.

The fires were reported about 12:55 p.m. near the 400 block of North San Fernando Road, according to the Los Angeles Fire Department.

The largest fire scorched about a half-acre of grass, the LAFD reported. No injuries were reported. Firefighting activity affected the nearby Metro A Line service, the LAFD reported.

"Service on that light rail line will be paused in the immediate area of Metro's Lincoln Heights/Cypress Park Station until LAFD operations are complete," the LAFD reported about 2 p.m. "The fires have been largely extinguished at 0.75 acres by 34 Firefighters in just 57 minutes. The cause of the fires is considered 'suspicious' and remains under active investigation."

Metro officials said service was disrupted between the Lincoln/Cypress and Chinatown stations, and buses were brought in to shuttle passengers through the area. As of late afternoon, the Metro A  resumed normal services with residual delays estimated to last until 3 p.m., Metro officials said.