The suspects, described in a press release as four "dark skinned" males in their 20s, are wanted in the attempted robbery of Plaza Jewelers on Middlefield Road near Eighth Avenue.
A weapon, a black semi-automatic handgun, is in police possession, said Deputy Rebecca Rosenblatt of the San Mateo County Sheriff's Office. No injuries were reported in the robbery attempt.
Deputies arrived at the jewelry store within 30 seconds of the call and followed the suspect vehicle, a white sedan, until it crashed into another vehicle and slammed into a telephone pole at Marsh and Bay roads at 12:32 p.m.
The car's occupants fled, with deputies in pursuit. The occupants of the vehicle that was struck were not injured, Deputy Rosenblatt said.
The search for the suspects, which included K9 units, was yard by yard in the Menlo Park neighborhood known as Suburban Park/Lorelei Manor/Flood Park. At one point, the search included a fixed-wing plane from the California Highway Patrol, Deputy Rosenblatt said.
Residents were asked to remain indoors during the search, and those not at home were being kept outside the search perimeter, she said.
Also in the hunt were police from Atherton, Menlo Park, Redwood City and Palo Alto, a total of 50 officers and deputies, Deputy Rosenblatt said.
Following the crash, police were seen holding shotguns and standing in the street and along railroad tracks near Marsh and Bay roads, a witness said.