Prosecutors have dropped the charges against two teenagers who had been arrested in connection with a rape last year near the Greenbelt Metro station, saying DNA evidence has exonerated the young men.

K’Vaughn Brandon Hines and Sheldon Snead, both 19, were arrested in January in connection with the attack. They were released from jail and put on home detention in May, when initial DNA test results indicated that “they may not be involved,” said John Erzen, a spokesman for Prince George’s County State’s Attorney Angela Alsobrooks. He said the rape and other charges were dropped Friday after investigators confirmed those initial results.

Erzen said prosecutors still believe a 24-year-old was raped in the 6000 block of Cherrywood Lane in Greenbelt in December, but the charges against Hines and Snead were based, in some part, on the faulty word of an acquaintance of theirs. He said prosecutors are now investigating that acquaintance’s story to determine whether they might bring charges against him.