Several major companies say they are targeted in an international cyberattack which started in Russia and Ukraine before spreading to western Europe.

Thirty computers were reportedly affected so far in Bangladesh by the global ransomware attack, which affected computers in nearly 100 countries on Friday, says a non-government research organisation.

No government website or data centre or any other infrastructure is yet to face any problem after the global cyberattack, which infected computers in more than 100 countries in last two days.