Hacktivist group Anonymous is ramping up efforts to tackle sympathisers of the Islamic State group on Twitter.
It has published a list of Twitter accounts it claims are spreading propaganda in support of the group.
Some accounts have been flooded with images of Japanese anime characters to try to influence search engine results for phrases connected to IS.
Many other accounts have been suspended or shut down as a result of the group's actions.
No solution
As well as targeting Twitter accounts, the operation also sought to take down Facebook pages, blogs, websites and web proxies used by supposed IS supporters.
The publication of the list is the latest in a series of "operations" by Anonymous and others hacktivist organisations against the IS group and its online supporters.
The list of more than 750 Twitter accounts that Anonymous has taken action against was published on the Pastebin website. Top of the list were accounts that had more than 10,000 followers, it said, but many others with smaller numbers of readers were also targeted.