SAN BRUNO (CBS SF) – A man was robbed of his briefcase Saturday night in the parking lot of Tanforan Mall in San Bruno, police said.

The victim notified police of the incident shortly after 9 p.m., telling them that he was putting the briefcase in the trunk of his vehicle when a man grabbed it and fled to an awaiting car.

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The victim tried to recover the briefcase, but backed off when a second robber pointed a handgun at him, police said.

The suspects were described as 5-foot-8 to 5-foot-10 males with slender builds, wearing all black clothing.

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The getaway vehicle is described as a dark-colored, small four-door, sporty sedan, possibly a Honda, according to police.

Anyone with any information is urged to contact the San Bruno Police Department at (650) 616-7100 or sbpdtipline@sanbruno.ca.gov.  Information can be left anonymously.

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