STOCKTON (AP) — Stockton police say three men duct-taped a U.S. mail carrier at gunpoint and robbed him of about 3,500 pieces of mail.

The robbery occurred around 1:30 p.m. Thursday. Police say the carrier was adjusting his cargo when the unidentified men approached.

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One pushed his head down and held a gun to him while another taped his hands behind his back. The third man served as a lookout.

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The men then made off with the mail, leaving the carrier in his truck.

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(Copyright 2012 The Associated Press.)