OAKLAND (CBS SF) – A crew renovating an Oakland apartment building was held up in the middle of the afternoon Monday.

The 8-man team was working on a vacant building on 23rd Street, underneath Interstate 980, when four suspects approached and took their wallets, phones and cash, according to the Contra Costa Times.

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According to the newspaper, at least three of the men were carrying guns when they carried out the crime around 2:45 p.m. The suspects then fled in a car, but a vehicle description was not available.

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Construction workers were robbed at several job sites in East Oakland last summer, sometimes at gunpoint.

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Most of those robberies targeted private contractors remodeling houses.