Three men suspected in a recent series of break-ins and robberies at houses in the Maryland suburbs were extradited yesterday from the District to Prince George's County and charged in two armed robberies.

Since late January, 30 similar robberies have been reported in the Maryland suburbs along with one in Northwest Washington. Prince George's police said they were questioning the three men about some of those incidents.

Charged yesterday with two break-ins in the Hyattsville area were Donald Leroy Brown, 32, his brother, Dennis Curtis Brown, 28, and Craig Kenneth Clary, 24. The three were arrested on fugitive warrants in the District Tuesday night and Wednesday.

Prince George's police spokesman Bruce Gentile said detectives drove the men around the county yesterday in an investigation of other robberies.

Montgomery County police have issued six warrants for the men for armed robbery and use of a handgun in the commission of a felony. Also outstanding on Donald Brown is a fugitive warrant for a burglary charge that police said is not related to the recent series of robberies.

All three are suspects in robberies in the Bethesda and Silver Spring police districts, Montgomery police spokesman Harry Geehreng said. He would not specify the cases.

In several recent robberies in the lower county, elderly victims were accosted in their homes, and one 77-year-old woman was severely beaten.

In Prince George's, Donald Brown of Perry Street NE, and Dennis Brown of 5600 Nicholson St., Riverdale, were each charged with one count of armed robbery in an April 19 break-in at a home in the 1900 block of Saratoga Drive in Adelphi. In that incident, a 53-year-old woman was struck, thrown down and kicked in the face, police said.

Clary, of 2026 13th St. NW, was charged with one count of armed robbery in connection with a break-in April 6 at a house in the 200 block of Brighton Road in Hyattsville.

The three men are scheduled to appear today at a bond hearing in Upper Marlbor.