"There is total impunity for these killers in Sri Lanka."
The rights watchdog says both the Tamil Tigers and rival pro-government para-military groups were involved in attacks against Tamil mediamen.
In December, Reuters photographer Auruddha Lokuhapuarachchi sought refuge in India after being threatened, a few days after Sinhala journalist Rohitha Bashana Abeywardena, fled to Europe, RSF said.
In November, the editor of Shakthi television received death threats after covering tne assassination of a Tamil parliamentarian, and in August the news editor of privately-owned radio Sooriyan, Nadarajah Guruparan, was kidnapped and held for a day.
Three journalists and four media assistants were killed in 2006.
In August, Sinnathamby Sivamaharajah, politician and editor of a Tamil nationalist newspaper was shot dead at his home in Jaffna.
In July, the independent Si