PALO ALTO, Calif. (AP) _ An electrician reportedly distraught about his job with the city opened fire in his office Friday, seriously wounding two supervisors before killing himself, officials said.

Vladimir ''Walter'' Kozubov, 49, was pronounced dead at the utility control center, police said. Friday marked his ninth year on the job.

One supervisor, Charles Richard Monzingo, 44, was listed in critical condition. The other, Thomas Edward Darden, 35, was reported stable. Both were at Stanford Hospital with gunshot wounds.

''He immediately shot both of them and then turned the gun on himself,'' said officer Lacey Burt. ''I don't know the motive at this time.''

City electrical assistant Ken Schwab said he and about nine other workers sat down about 6:50 a.m. to discuss morning assignments when Kozubov came in with a small caliber handgun and began firing.

''I got under the table as fast as I could as soon as I saw Walter hit the ground, I got out and called the police,'' Schwab said.

Co-workers said Kozubov recently returned to work from a leave of absence and seemed distraught over job-related situations.