A spate of hacking attacks on Indonesian media that published articles critical of the government's response to the coronavirus has raised concerns over press freedom, the country's leading journalists' association said on Monday.

At least four media organizations have been targeted in unprecedented digital attacks, said Abdul Manan, chairman of the Alliance of Independent Journalists (AJI).

"This is too serious to be an accident," Manan said. "It is certain this type of attack, and the intended target of the media that has been quite critical so far. There is a very clear intention: that this is part of an effort to reduce the media's critical attitude toward the government."