A man was beaten and robbed at gunpoint after arranging to meet someone to sell a sweater through an online marketplace on Tuesday, police said.
The crime unfolded Tuesday, but was not reported to police until the following afternoon, Pasadena police Lt. Sean Dawkins said.
An Alhambra man in his 20s went to the area of El Sereno Avenue and Tremont Street, where he had arranged to meet a buyer for the apparel item on the OfferUp app, he said.
Upon arrival, he was confronted by five to six people, described only as male.
One of the robbers pointed a handgun at the victim as the others assaulted him, punching him in the face repeatedly, Dawkins said. They took the two necklaces and an iPhone from the man before running off.
The victim suffered abrasions and other injuries to his face and back, but was not seriously hurt, Dawkins said.
A detailed description of the attackers was not available.
Anyone with information can reach the Pasadena Police Department at (626) 744-4501. Tips may also be submitted anonymously to L.A. Regional Crime Stoppers at (800) 222-8477.