COPENHAGEN, June 27 (Xinhua) -- Shipping giant A.P. Moller-Maersk said on Tuesday its IT systems were down due to the Petya cyber attack.
The Danish company, which handles one out of seven containers shipped globally, made an announcement on its website that the Petya cyber attack had affected multiple sites and select business units, without elaboration.
"We are responding to the situation to contain and limit the impact and uphold operations," Maersk said in the statement.
"We continue to assess and manage the situation to minimize the impact on our customers and partners," it added.
With a fleet of more than 600 container vessels, Maersk is the world's biggest shipping company with a market share of around 16 percent.
The cyber attack has also reportedly hit Russia's top oil producer Rosneft and a number of Ukrainian commercial banks and state and private companies.