<b>Mumbai Blasts:</b> ATS probe reveals RDX used

Traces of RDX and Ammonium Nitrate have been found in debris culled from the sites of the serial blasts in Mumbai on July 11, police sources said.

The chief of the Anti-Terrorist Squad (ATS) said the traces found at blast sites are small in quality.

Investigations so far have revealed that the blasts were the handiwork of someone "beyond the border", he said.