Two policemen and a home guard were injured when a man resorted to indiscriminate firing after having an argument with his family members and locking them up in a room of the house on Sunday this week. The incident occurred in Shyam Nagar in Chakeri, in Uttar Pradesh. The injured policemen informed their seniors about the incident following which more policemen were sent to the spot.The daughter-in-law told the authorities that the accused is suffering from a psychological disorder.