KANPUR, Sept. 29 -- A man and his daughter were killed while two others, including his son, were critically injured in an explosion on Monday morning at an alleged illegal firecracker unit being operated in a house in Rewadi Khurd village under Kalyanpur police limits in Uttar Pradesh's Fatehpur district, said police, adding four policemen had been suspended for negligence.

The deceased were identified as Noor Mohammad, 57, and his daughter Tayyaba, 18, who died on the spot when the upper floor of their house collapsed. His son Alisher and a local milkman Guddu of Laxmanpur sustained severe injuries in the incident and were referred to LLR Hospital in Kanpur, they added.

Fatehpur SP Anup Singh, who visited the site, said Noor Mohammad e...