Sixty journalists were killed while covering stories during the first-half of 2015, according to the International News Safety Institute of the UK.

Richard Sambrook, INSI president, said 2015 is shaping up to be one of the worst years for journalists' death.

He noted that local journalists reporting on crime and corruption face the biggest threats.

Terrorist threats—jihadists decapitated seven journalists this year-- have made countries such as Syria no-go zones for reporters.

"The consequence of all that is that the public knows less about the world than they should, and the killing of journalists is increasingly seen as a political act or means of censorship," said Sambrook.

France, which lost eight journalists early this year during the terror attack on satirical magazine Charlie Hebdo, topped the first-half journalist murder list.

South Sudan and Yemen followed with six each; Iran and Libya had five deaths, while Brazil followed with four.

INSI's report called "Killing the Messenger" found that the murderers of reporters enjoyed total impunity.