A second building collapsed in Alexandria on Monday, hours after a residential apartment building fell in another area of the Mediterranean city.
At least one woman was killed and four others injured when a dilapidated building subsided in the western Al-Gomruk district, Al-Ahram's Arabic news website reported.
Late on Sunday, a two-storey apartment building collapsed west of the city, leaving an elderly woman dead.
Officials say both buildings were issued demolition orders that weren't enforced.
Building collapses in Egypt are frequent in poor areas, and are often attributed to decaying infrastructure, local authorities' failure to carry out demolition orders, and unlicensed extensions of additional floors. The government is frequently blamed for lax enforcement of construction laws.
The coastal city of Alexandria has been plagued by major building collapses in recent years.
Similar incidents left one dead in the city in May and another in February.
In one of the deadliest incidents, a building collapsed in January in El-Maamoura district, killing 28 and injuring at least 11.