DIG, Sukkur, Akbar Malhi said that the explosive device was found in the warehouse of the cement factory in Rohri area during a search operation ahead of Muharram.
"The explosion took place in the warehouse of the factory when the security and Bomb Disposal Squad (BDS) personnel were trying to defuse it and five persons were killed. It include two BDS officials, two paramilitary rangers and the factory's civilian worker," he told reporters.
Malhi said that search operations were being carried out in different parts of the province as a preventive measure ahead of Muharram.
Meanwhile, in Karachi, police claimed to have arrested two militants belonging to the Lashkar-e-Jhangvi.
The Counter Terrorism department of Sindh police said it had arrested Muhammad Abdullah Majid and Adnan Ahmad - who were involved in sectarian murders and were planning to carry out more attacks during the upcoming month of Muharram.
Disclaimer: No Business Standard Journalist was involved in creation of this content