Bomb scare, suspicious vehicle rattle nervous Sri Lankan capital
Focus turns towards foreign groups supporting Sri Lankan bombers
Sixteen more people taken in for questioning
Others caught for visa offences in nationwide sweep
Pakistanis flee in fear of reprisals
Colombo | Sri Lankan authorities locked down the central bank and the road leading to the jittery capital's airport was shut briefly by a bomb scare on Thursday as more people were swept up in the search for those behind Easter Sunday bombings that killed 359.
Two bank officials told Reuters the street outside the building near the World Trade Centre in the capital, Colombo, was blocked to traffic before the security alert was lifted.
