Chennai: Twenty-four hours after the twin blasts on board a train at the Chennai Central Railway Station, investigators are now probing if there is any link of the blasts with a Sri Lankan national Zakir Hussain who was arrested earlier this week. He is suspected to have acted as an agent of an ISI operative in Colombo.
The investigators are also looking for leads in Bangalore. After speaking with passengers on board the train and speaking to those injured in the blasts, investigators believe they have found vital clues in neighbouring Karnataka.
The CB-CID officials are also co-ordinating with the police in other neighbouring states. The Bangalore-Guwahati express started from Bangalore late on Wednesday night and arrived at the Chennai Central station at around 7 am when the blasts took place.
Two suspects who were detained after the blasts on Thursday have been released. The CISF has issued alerts to all airports across the country.
One person was killed and 14 injured after blasts went off on the Bangalore-Guwahati Express when it had made an halt at the Chennai station. Tamil Nadu Chief Minister Jayalalithaa had ordered the CB-CID and SIT probe into the blasts together with the Railways police.