DENVER — For the second time in 24 hours, the campaign office of GOP presidential nominee Donald Trump was vandalized here.

A man threw a rock through a window of the office Friday as staffers were working inside.

Denver police took a suspect, whose name was not released, into custody shortly after 8:30 p.m. MT. A security guard in the area helped detain the suspect until police arrived.

The rock left a hole in a window about the size of a melon, said Steve Barlock, co-chairman of Trump's Denver campaign office.

About 14 volunteers were inside the office at the time, he said. No one was injured.

On Friday morning, volunteers had arrived at the office around 6:30 a.m. to find vulgar graffiti sprayed on the side of the building. Police have not made any arrests in that incident.

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