Seven members of a family died when the car in which they were travelling collided with another vehicle on a busy expressway in the northern Indian state of Uttar Pradesh on Saturday.

Police said all the deceased, including a child, were on their way to attend a wedding when the accident occurred on the Yamuna Expressway in the state's Mathura town, 130 kms from the national capital.

Indian Prime Minister's Office tweeted to say that Narendra Modi had expressed his condolences to the bereaved families and wished for a quick recovery for the injured.

"A probe has been ordered into the fatal accident," the police officer said.

Road accidents are very common in India, with one taking place every four minutes. These accidents are often blamed on poor roads, rash driving and scant regard for traffic laws.

Indian government's implementation of stricter traffic laws in recent years have failed to rein in accidents, which claim over 100,000 lives every year.