Montgomery County officials will station additional police officers at Friday night high school games and encourage parents to accompany their children to such events in the wake of two fatal assaults after football games in the past two weeks, leaders announced yesterday.

At this point, the school district does not plan to move its games to Saturday afternoons to avoid the sort of violence that left a 15-year-old Rockville girl dead last week.

"The sad thing is, we know it can happen again, because it already has," said County Executive Douglas M. Duncan (D).

Officials would not specify how many police officers would be at each game but said the numbers would depend on the size of the expected crowd, the degree of rivalry between the schools and any tips indicating a potential for violence.

Police Chief J. Thomas Manger said that at least two officers patrol every high school game but that more than two would be present for the rest of the football season.

There was no connection between the violent fights and the games, Manger said, but authorities want people to feel safe.

"It was just a coincidence that they happened at schools," he said. "We don't need to overreact, but we need to make a measured response."

On Friday, Kanisha Neal was fatally stabbed in the parking lot after a game at James Hubert Blake High School in Silver Spring. Another 15-year-old girl has been charged with second-degree murder.

On Sept. 16, Stephone Wiggins, 23, of Germantown was beaten with a miniature baseball bat during an off-campus fight after a football game at Seneca Valley High School. Two men have been charged.

Staff writer Tim Craig contributed to this report.