Six people, including three boys, were killed and at least 20 injured when an apartment building collapsed on Friday in the Nile Delta city of Damanhur, north-west of Cairo.
Officials said the four-storey block fell down after a gas cylinder exploded.
Two adjacent buildings suffered structural damage, they said.
Authorities released the names of the six fatalities, who included three boys; Youssef Ahmed Amin, 10, Yassin Ashraf Mahdi, 5, and Yassim Ahmed Mohammed, 3. Yassin's father, 49-year-old Ashraf Mahdi, was also killed.
Building collapses are common in Egypt, where poor construction and shoddy building maintenance are common, especially in shanty towns, low-income neighbourhoods and rural areas.
Last month, six people were killed in an apartment block collapse in the southern city of Assuit.
