VANCOUVER, Wash. - Two robberies at the same location have led Clark County authorities to warn the public about meetings arranged through dating applications or social media networking sites.

The first happened Tuesday about 1:30 a.m. at Truman Elementary School. According to the Clark County Sheriff's Office, a 23-year-old man told deputies he had been robbed.

Authorities said that he made arrangements on a web site called to meet a woman. Shortly after he arrived, four or five men wearing masks came out of the shadows. They had handguns and demanded all of the victim's money. The victim waited until the afternoon to report the robbery because he was embarrassed, officials said.

Then later Tuesday, at approximately 7:15 p.m., deputies and the Vancouver police responded to the same school on another robbery call. When they got there they found another victim, also a 23-year-old man who had made arrangements over the Tinder dating app to meet a woman. When he arrived and met her, he was confronted by four or five men armed with handguns. They took the victims and car and left the area. The car was found about a mile from the school a little later. This account is according to sheriff's deputies.

Both victims described the female suspect as between 17 to 23 years old. The male suspects were all wearing masks but believed to be in their late teens to early 20's. Four had handguns and one had a rifle.

Clark County Deputies say there is no danger to students or staff at the school, and that the investigation is ongoing.