Sri Lanka has temporarily put its new visa-on-arrival programme on hold due to the security situation in the island nation.
The programme was expected to be implemented from May 1 for tourists from over 30 countries.
"Investigations have revealed foreign links to the attacks and we do not want this facility to be abused," the country’s Tourism Minister John Amaratunga said in a statement.
The pilot programme was part of a larger initiative to boost tourism during the off-season period from May to October.
Meanwhile, President Maithripala Sirisena said 139 people have been identified as suspects in connection with the attacks.

Peace deal hopes fade after Trump rejects 'garbage' Iran proposal
Brazilian flotilla activist returns home, alleges torture during Israel detention
India's Modi to begin five-nation tour, including UAE
UK's Starmer under renewed pressure as lawmakers urge him to quit
Malaysia searches for 14 missing after migrant boat capsizes
Trump says Iran ceasefire 'on life support' after he rejects Tehran's response
Hospitals evacuated, MSF services halted as rival gangs clash in Haiti's capital
EU ministers agree on sanctions targeting violent West Bank settlers
