Residents living within a 6km radius were asked to evacuate following the fire that broke out at the warehouse of the Salawa Army Camp in Kosgama, Avissawella.
It is known that corroded RPGs multi barrel rockets are also stored at the camp.
Residents in the area who spoke to Asian Mirror over the phone earlier this evening said debris hit the Colombo- Avissawella road, which was closed immediately after the fire broke out.
Navy and Air Force teams have also been sent in to douse the fire.