Annapolis police are waiting on the results of a blood test before deciding whether to file charges against an Edgewater man who crashed his car into an off-duty ambulance Saturday morning.

Police said Christian Daniel, 20, of Edgewater, was traveling west on Route 665 at 4:40 a.m. on Saturday when he failed to merge. Route 665 narrows from three lanes down to two lanes just past Chinquapin Round Road.

Daniel's car crashed into an Annapolis ambulance in its right front bumper before striking a dirt mound, a bush and flipping over. Police said his Ford Focus came to rest upside down in the eastbound lanes of Route 665.

The ambulance suffered minor damage and neither medic was injured.

Daniel and his passenger both climbed out of the vehicle before emergency responders arrived, according to a police report.

Police suspect alcohol may have been a contributing factor in the accident.

Emergency personnel transported Daniel to Anne Arundel Medical Center and his passenger to Shock Trauma in Baltimore. The extent of their injuries is not known at this time.

This is not the first time Daniel has faced driving related charges.

In October 2011, he was found guilty of negligent driving for going 85 mph in a 45 mph zone, according to online court records. In May 2011, Daniel was also cited for driving 63 mph in a 45 mph zone in Mayo.