Mumbai: RDX has been found to be the material used in the very high intensity explosion witnessed on August 25 twin blasts that rocked the city killing 52 persons and injured over 130, according to State Forensic Laboratory in Mumbai.

Confirming that RDX was used in both the blasts, the director of State Forensic Laboratory Dr Rukmini Krishnamurthy said that the report was based on the samples collected the forensic scientists from both Gateway India and Zaveri Bazar sites immediately after the blasts.

"On the face of it, it does not appear to have had any 'external missiles' as was the case in 1993 serial blasts," she said.

The penetration of particles in the victims body and the impact on the dead was due mainly to the mingled parts of the damaged vehicles of irregular shapes.

"The device must have been kept in the dicky in both the cases and the CNG cylinders added to the high-explosive device's impact," she said.

The remnants of the CNG gas cylinders were found in both the sites thereby confirming that the CNG gas adding to the impact of the blast, she added.

The tissues of some of the mutilated bodies where identification by the relatives was impossible, have been sent to the forensic lab by the police for identification by DNA fingerprinting technique, Krishnamurthy added.

PTI