Montenegrin police and the US Federal Bureau of Investigation arrested an Iranian national suspected of hacking attacks that damaged US infrastructure to the tune of $3.4 billion.

Axar.az reports, citing Reuters, the 39-year-old man, with dual Iranian and Turkish citizenship, is sought by the Southern District Court in New York on charges including conspiracy to commit computer fraud, hacking, and identity theft.

He was arrested in the Adriatic coastal resort of Kotor, Montenegro’s police directorate said on Thursday.

“From 2013 onward, ... he carried out massive hacking attacks ... targeting more than 150 universities in the United States, causing damage estimated at over $3.4 billion,” it added in a statement.

The case will now go to a High Court judge in Montenegro’s capital of Podgorica for extradition proceedings, the police added.