Three persons of a family were killed when the two-wheeler on which they were riding was knocked down by a speeding car on the Madurai-Aruppukottai highway on Monday evening.

The police said that B. Murugesan (44) of Udayanpatti and his wife, Muthulakshmi, were taking their son Aravindraj (11) after getting him discharged from the Government Hospital at Aruppukottai on a two-wheeler. When they tried to cross the highway at Kanchanayakkanpatti junction, a car hit their vehicle, killing Murugesan on the spot.

Both Muthulakshmi and Aravindaraj, who were referred to the Government Rajaji Hospital in Madurai, succumbed later in the night.