SAN DIEGO - San Diego police and the FBI are searching for a man who allegedly robbed a North Park-area bank.

According to authorities, the incident happened Tuesday shortly after 4 p.m. at the Union Bank branch on 2927 University Avenue.

Police said the suspected robber, who was carrying what was described as a kitchen knife, approached a teller and then jumped over the counter. He then grabbed an unknown sum of money.

After jumping back over the counter, witnesses said the man chased and threatened several bank employees around the lobby area with the knife before running out of the branch. Witnesses said the dropped some money as he fled the scene.

The suspected robber was described as white, about 40 years old, 6 feet tall, bald with gray hair on the sides and a goatee with mustache. He has a medium to heavy build, and was wearing a white tank top with "California" printed on it, dark pants, white socks and tennis shoes.

Police said he was last seen running southbound on 29th Street.

No injuries were reported, but an ambulance was summoned to the scene after an elderly female witness experienced high-blood pressure-related problems.