YOKKAICHI, Mie Prefecture--A road rage incident captured by the victim's dashboard camera and posted on social networking sites led to the arrest here March 5 of a 77-year-old man.

Police said Noriaki Matsuoka apparently became enraged when he found himself stuck behind a car that he thought was moving too slowly, pulled out into the opposite lane to overtake and swerved in front of the vehicle to force the driver to stop.

He then stormed over to the man in his 20s and screamed while thrusting his hand through the open car window, “Are you intentionally driving slowly?”

Police arrested Matsuoka on suspicion of assault as well as violating the Road Traffic Law for crossing a solid center line to overtake.

Matsuoka, who is retired, resides in Komono in the prefecture. The other man is also local.

The incident occurred around 1 p.m. on Jan. 13 in Yokkaichi's Nishimuracho district.

The victim later posted his dashcam footage of the incident on Twitter, which was reposted by followers on a video sharing website, prompting one viewer to report the matter by phone to the police.

Police checked the Twitter site to learn the victim's identity and get a first-hand account of the incident.

Matsuoka was arrested after police tracked his license plate recorded in the footage.

He admitted to contravening traffic regulations by overtaking but denied assaulting the victim, police said.