A driver lost consciousness at a downtown intersection Friday morning, causing a minor traffic accident.

The driver of a black, late-model Honda sedan apparently lost consciousness as he was driving on Temple Street toward Congress Street.

β€œI saw his head fall,” said Andrew Hanson, who walked by the scene on Temple Street, a few feet away from the accident. β€œHe was normal and then suddenly he was not.”

The Honda continued forward for several feet after the driver passed out, scraping against the side of a commercial van that was stopped and waiting to make a turn in the next lane. Hanson said the man had a dark substance coming from his mouth.

Hanson said another passerby flagged down a passing fire engine. The doors to the car were locked, so firefighters had to break a window to get to the driver, a man who appeared to be in his 20s.

Firefighters and EMTs appeared to administer a blood-sugar test to the driver, Hanson said.

The driver eventually regained consciousness and was able to get out of the vehicle and onto a stretcher with the help of EMTs. Damage to both vehicles appeared minor.