A high school student was allegedly robbed and stabbed in Tribeca on Friday after a Facebook sale went wrong, police said.

The 17-year-old Stuyvesant High School student arranged the sale of three hoodies through Facebook's Marketplace feature. According to the Daily News, the teen was selling A Bathing Ape and Supreme hoodies, which retail between $150 and $300 but can re-sell for upwards of $1,000.

He went to Pier 26 after school to complete the sale, his friend Nazum Uddin told NBC 4 New York.

The unnamed student arrived at a Tribeca skate park to meet a female buyer, and police told Gothamist he was instead met by two men who threatened him and stabbed him in the left thigh. He was reportedly taken to Bellevue with minor injuries.

"He brought the clothing to the skate park after school, and when he got here they pressed up on him and stabbed him and grabbed his clothing and ran away," Uddin told NBC 4.

Facebook Marketplace, a Craigslist-esque listing service, launched in October and has already had its fair share of issues. If you plan on buying or selling wares through the service, here are a few tips for staying safe.