Three persons, including two children, were killed and four others injured in two separate incidents of wall collapse in the district, police here said on Friday. Budhai, a resident of village Bhabhutgarhi village, Uttar Pradesh under the jurisdiction of Subeha police station, left his sleeping two children at home and went to attend nature's call in the morning, they said.

Upon returning, he found that the wall of his thatched-roof house had collapsed on the children, the police said.