In Uttar Pradesh, at least 7 people including 4 women have been killed and 5 others injured today in an explosion in an illegal fire-cracker factory under Mohammadabad area in Farrukhabad district.Quoting police sources, AIR Lucknow correspondent reports that the blast took place when the workers at the factory were shifting the crackers after a police raid.Due to impact of blast house was collapsed and workers were buried in the debris. Five died on the spot while two succumbed to their injuries in the hospital. The injured were admitted to a local hospital where their condition is stated to be critical.AIR correspondent reports that it was the third incident of crackers blast in the state. Recently 10 persons were killed in two separate incidents at Allahabad and Chhatrapati Shahuji Maharaj Nagar districts.