Amethi, April 18 : Six people of a marriage party, including a son and father were killed while four others were injured when an SUV collided head-on with a truck here in Uttar Pradesh. In the accident near Babuganj Sagra Ashram on Sunday night, of the 10 passengers in the vehicle, six died on the spot, while four are critical, Gauriganj police said. Of the father-son duo, the son has been identified as one Anil. MB ING