Bhubaneswar, April 28 -- A team from the National Investigation Agency (NIA) on Tuesday visited Capital Hospital in Bhubaneswar as part of its ongoing probe into the Azadnagar bomb explosion case.

According to sources, the NIA officials reached the hospital to collect crucial medical records and related information concerning the accused and his associate, who were initially brought there following the blast. 

The agency is focusing on the use of RDX in the explosion and checking whether it was part of a larger criminal operation, sources added.

The central agency is closely examining the sequence of events immediately after the explosion, including the medical response and the condition of the injured suspects upon arrival at the...