The Gate Fire, which has blackened about 2,055 open acres northwest of Dulzura, was fully contained Tuesday.
Cal Fire crews are expected to remain on the scene throughout the day, mopping up and guarding against flareups.
All evacuations ordered since the fire erupted late Saturday morning near state Route 94 and Otay Truck Trail have been canceled, and road closures along state Route 94 have been lifted, according to Cal Fire.
No structural damage was reported and the only known injury related to the fire occurred when a car struck a Chula Vista police officer directing traffic near the outskirts of the blaze. Police said the officer suffered serious, but not life-threatening injuries.
A criminal investigation into the origin of the fire was launched after a video surfaced on Instagram over the weekend that seemingly showed a group of people starting it and then fleeing. The person who posted the images is cooperating with officials, Cal Fire Capt. Issac Sanchez said.
The Gate Fire was so named for its proximity to a landmark pink gate in the area.
— City News Service