Two Montgomery County police officers on motorcycles sustained minor injuries after a crash on the northbound side of Interstate 270 during an escort training exercise, officials said.

The incident happened Wednesday near MD 109 and closed the highway for about an hour.

One of the motorcyclists had an issue while driving and put the motorcycle down, officials said, and the second officer tried to avoid the crash.

Updated at 12:11 p.m.

All northbound lanes of Interstate 270 north in Montgomery County have reopened after an earlier crash involving two motorcyclists.

Original post at 9:15 a.m.

All northbound lanes of Interstate 270 near MD-109 in Montgomery County will be closed for at least an hour, officials said, after a crash involving two motorcycles with the county police department.

Officials said on Twitter that crews are investigating the crash and that officers on motorcycles were involved. Pete Piringer, a spokesman for Montgomery County Fire, said two motorcyclists were involved and that the officers suffered non-life-threatening injuries.

The crash happened along I-270 north, just north of Clarksburg, and it’s not clear how long traffic delays will last. Traffic backups are beginning in the area near MD-27.