A shopping mall was hit by a powerful explosion in Armenia's capital, Yerevan, killing one person and injuring 45 others.
A spokesman for the emergency services ministry said 26 people had been taken to the hospital with 11 children.
Firemen worked to put out the blaze more than three hours after the early afternoon blast at the Surmalu market.
Rescue workers and volunteers in civilian clothes searched for victims who were trapped beneath slabs of concrete and twisted metal.
Fireworks continued to explode as the firemen and rescuers worked amid thick thick grey smoke seen above a building.
Emergencies Minister Armen Pambukhchyan said two sisters were pulled alive from the rubble.
Surmalu Market is located about two kilometres south of the city's centre.
There was no immediate word on what caused the fireworks to ignite.