Up to 150 workers were believed to have been inside the factory, which produces syringes and other plastic medical supplies, at the time of the explosion.
There is a thought there were close to 150 people inside when the accident happened.
( z1 think :ARG1 ( z2 person :location ( z3 inside ) :quant ( z4 close-to :op 150 ) :time ( z5 accident ) ) )