TEHRAN (Press Shia Agency) – At least 19 people were injured when three huge blasts rocked an explosives-manufacturing plant in the city of Dzerzhinsk in European Russia.

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“An explosion has hit a trinitrotoluene production workshop at the Kristall plant,” a spokesperson for the Russian emergency services said.

Local authorities have warned that further explosions could yet happen.

Social Media footage from the scene shows large plumes of smoke rising above the city. Witnesses said that some windows in nearby buildings were shattered by the explosions.

The “violations in the technological processes” inside the plant may have been the likely reasons of the incident, according to officials. The series of the blasts occurred in the part of the plant that was making TNT, with its building said to be completely demolished.

The plant’s administration said that there were no casualties in the fire that broke out after the blasts and all employees were evacuated.

The “Kristall” TNT production factory was founded in 1953. It is part of the state-run corporation “Russian Technologies”.