A bicyclist was seriously injured and transported to Santa Barbara Cottage Hospital after a vehicle collision Tuesday afternoon, police said.

The crash was reported at State and Mission streets at 1:42 p.m., Commander Charles Katsapis said.

“As the initial calls were coming in, an on-duty Santa Barbara Police Department officer who was in the area saw the bicyclist down and stopped to render aid. The officer was assisted by an off-duty firefighter, and together they provided aid until additional emergency personnel arrived on scene,” he said in a statement.

He said driving under the influence does not appear to be a factor in the collision, which remains under investigation.

The intersection was still closed to vehicle traffic as of 3:30 p.m. Tuesday, and was expected to stay closed for several hours, according to police.

The SBPD Critical Accident Reconstruction Team is assisting the investigation because of the seriousness of the collision, Katsapis said.

No further details were available.