TOKYO—Honda Motor Co. said a cyberattack has disrupted its internal network and brought some of its assembly plants around the world to a standstill.

Production has been halted at car factories in Ohio and Turkey, as well as at motorcycle plants in India and South America, and the company is working to fix systems, spokesman Hidenori Takeyasu says. Japanese operations weren’t affected and Honda’s other plants in the U.S. have resumed manufacturing.

The disruption comes as manufacturers have shut some offices and plants and let staff work from home due to the coronavirus pandemic. Japanese carmakers have slowly started to ramp up production around the world after countries gradually began lifting lockdown measures put in place to halt the spread of the pandemic. Honda resumed operations in the U.S. May 11, and had planned to reopen its U.K. plant this week.

Production at the factory in Swindon, England, will restart June 10, two days later than planned, a person familiar with the situation said.

Honda said in an updated statement that there’s no indication of an information breach and the impact on business will be minimal.

Other industries have seen rising cyber-attacks during the outbreak, as well. On Sunday, Singapore Technologies Engineering said its unit, VT San Antonio Aerospace, recently discovered a cybersecurity incident where a group “gained unauthorised access to its IT network and deployed a ransomware attack.” Last week, ship builder Fincantieri SpA confirmed that servers at its Norwegian unit were infected.

The U.S. was hit by a record volume of ransomware attacks in 2019, and hackers have shown little sign of relenting in 2020, when users spent more time on less-secure networks while working from home. In 2019, at least 966 government agencies, schools and health care providers were attacked at a cost of more than $7.5 billion, according to the cyber research firm Emsisoft. Among those were almost 90 universities and school districts.

Honda’s car inspection system, used to check defects before shipping and registering car information, wasn’t able to access computers at its plants. The company discovered the issue in the early hours of Monday.

To learn more about cybersecurity, read this feature article in ASSEMBLY.