A family from Lakhimpur Kheri was on its way to Bijnore when their SUV collided with a state roadways bus near Suhagpur village on the Sherkot road here, killing nine persons on the spot, they said.
Four others - a woman and her three children - were injured and admitted to a hospital, the police said.
Those killed have been identified as Rohit Tandon (40), Rajat (42), Sona (32), Shalu (42), Neeru Tandon (60), Monu Tandon (12), Kartik (10), Pari (10) and Karimuddin (37), who was their driver, the police said.