AP Moller-Maersk says its subsidiary APM Terminals has been impacted in a number of ports following yesterday’s cyber-attack, but most of its other businesses are unaffected.

In a new update provided earlier this morning, the Danish conglomerate said that "at this point, our entities Maersk Oil, Maersk Drilling, Maersk Supply Services, Maersk Tankers, Maersk Training, Svitzer and MCI are not operationally affected."