Eleven residents of Thane detained near the Bangladesh border in the Northeastern state of Tripura will be brought to Mumbai for questioning in connection with the bomb attacks in trains, police said on Saturday.
They were caught two days ago while moving about suspiciously near the border. A team of the Anti-Terrorist Squad (ATS) will bring them to Mumbai from Tripura for the blasts probe, ATS chief KP Raguvanshi said.
Raghuvanshi said forensic tests to ascertain the nature of explosives have proved inconclusive.
Therefore, the help of the National Bomb Data Centre and the National Security Guard (NSG) is being taken, he said.
The samples of the explosives have also been sent to a laboratory in Hyderabad, he said.