New Delhi, May 3 (IANS): Three people of a family, including a couple, died while three children suffered injuries when a motorcycle they were riding on was hit by a speeding vehicle here early Sunday, police said.

The accident took place around 4.30 a.m. in Delhi's Swaroop Nagar.

Those killed were Deshraj, 32, his brother Yogesh, 30, and wife Morkali, 28.

Deshraj's two daughters -- Sadhna, 3, and Kiran, 2, -- and five-year-old son Nitin suffered injuries in the accident.

Police said that all the six were returning after attending the marriage ceremony of one of their relatives in a nearby area.

"The victims belong to the same family. They were riding on one motorcycle and none of them was wearing helmets," said a police official.

The family hailed from Uttar Pradesh's Bulandshahr district and resided here in Swaroop Nagar in a rented accommodation.

Police said that Nitin is out of danger while his sisters are battling for their life at the Lok Nayak Jai Prakash Narayan Hospital in the city.