The explosion took place on Tuesday during a ‘routine test’ by the Tomer factory for advanced weapon, Israel’s Haaretz daily newspaper reported on Wednesday.
There have been no reports of casualties so far.
The factory develops rocket engines and houses various types of missiles.
Locals said they heard an explosion and saw a mushroom cloud at the weapons manufacturing facility, which is located in the central city of Ramla and produces rocket and missile systems used by the Israeli military.
Tomer’s offices are located in proximity to residential areas.
“This was a controlled test with no exceptional circumstances,” Tomer claimed in reaction to the blast.
Meanwhile, Haaretz said officials may have underestimated the “collateral damage” of the test, which led to the explosion.
Investigations into the cause of the incident has been launched.
Established in 2018, Tomer is affiliated to the Israeli ministry of military affairs and is the manufacturer of a new ballistic missile system, the Arrow-4.
Israel’s Arrow-2 and Arrow-3 missile systems are already operational to intercept incoming missiles in the atmosphere and space.
Back in February, Israel announced that it was developing the Arrow-4 with the United States.
“The development of Arrow-4 together with our American partners will result in a technological and operational leap forward, preparing us for the future battlefield and evolving threats in the Middle East and beyond,” Israeli minister of military affairs Benny Gantz said in a statement at the time.