A group of four young men or teenagers robbed two people waiting for a train Thursday at the Capitol South Metro station in Capitol Hill, according to a spokeswoman for the transit system.

The incident, described as a snatch and grab robbery, occurred shortly before 2 p.m. on the station platform, located at First Street Southeast, between C and D streets.

Metro spokeswoman Caroline Lukas said that one victim had an iPad stolen, the other an iPhone. She said they occurred “one right after the other,” and that a third person who tried to intervene was assaulted.

Lukas said the four people ran out of the station and that D.C. police were alerted. No arrests had been made as of Thursday afternoon.