A retired New Jersey police officer is in critical condition after he was injured riding a bike during an event that raises awareness about law enforcement officers who died in the line of duty.

There are no details about what happened to retired Roxbury police Lt. Joseph Franklin during the Police Unity Tour in Far Hills. The police department posted online that he had sustained serious injuries from an accident on his bike on Monday.

Franklin was taken to Morristown Medical Center.

More than 1,900 current retired and retired police officers are riding bikes to Washington this year in the annual Police Unity Tour, raising nearly $2 million for the National Law Enforcement Officer’s Memorial and Museum. The first tour was organized in 1997 by a Florham Park police officer.