A hashtag calling for the arrest of journalists briefly became the top Twitter trend in Pakistan Thursday, deepening concern over a shrinking space for dissent in the country. Many users accompanied it with a composite photograph of prominent journalists and TV anchors, some of whom regularly criticise the governing Pakistan Tehreek-e-Insaf (PTI) party of Prime Minister Imran Khan and the powerful military establishment. Last year, the Committee to Protect Journalists (CPJ) said in a report that the military has "quietly, but effectively, set restrictions on reporting", although it denies doing so.