A Bowie man charged in five sexual assaults in Montgomery County was indicted by a grand jury in Prince George's County yesterday in seven other attacks on women in 1989 and last year, officials said.

Joseph N. Kirk, 30, was identified by authorities as a suspect in numerous sexual assaults after Montgomery police arrested him last month and charged him with attacking a woman in Olney in November. A grand jury in Montgomery indicted him Thursday in that attack and four others.

Including yesterday's indictments in Prince George's, Kirk has been charged in 12 attacks on women in Prince George's and Montgomery since 1988. In all, he faces 71 charges, including eight counts of first-degree sex offense, each punishable by life in prison.

Kirk, a plumber's assistant, is being held without bond at the Montgomery Detention Center. According to court documents, he was arrested by Montgomery police Jan. 4 after a surveillance team spotted him loitering near places where previous sexual assaults had occurred.

The grand jury in Prince George's indicted him in three attacks in 1989 and four last year.

Officials said the 1989 attacks occurred Sept. 29 in the 15000 block of Dorset Lane in Laurel, June 8 in the 9000 block of Riggs Road in Adelphi and Oct. 30 in the 9000 block of Cherry Lane in Laurel.

The 1990 attacks, officials said, occurred Aug. 17 in the 13000 block of Larchdale Road in Laurel, Sept. 11 in the 8000 block of Infield Court in Laurel, Sept. 24 in the 10000 block of Baltimore Avenue in Beltsville and Nov. 25 in the 9000 block of Annapolis Road in Lanham.

The Prince George's indictment included 55 charges related to the seven attacks, including five counts of first-degree sex offense and several charges of burglary and assault with intent to murder.

The Montgomery indictment included 16 charges, including three counts of first-degree sex offense, stemming from five attacks on women that occurred in 1988, 1989 and last year, officials said.

Kirk was convicted in San Diego in 1984 of sexually assaulting a 22-year-old woman. He was sentenced to four years in prison.