Peter Julius Moi, who worked with the independent New Nation newspaper in Juba, was shot as he headed home after work, his
colleagues at the newspaper said, without saying who could be behind the killing.
His body was seen on Thursday lying in the field where he was shot.
The killing comes just days after President Salva Kiir issued a warning to journalists.
“The freedom of press does not mean that you work against your country.
“If anybody among them does not know this country has killed people, we will demonstrate it one day on them,” Kiir told a news conference on Sunday, without elaborating.
Police and government officials were not available immediately for comment.
Kiir declined to sign a peace agreement proposed by mediators on Monday to end the country’s 20-month conflict.
He said he had some reservations about the pact and asked for an extra two weeks to consider the pact.
Tom Rhodes, the east Africa representative for press freedom group, Committee to Protect Journalists, said the killing would make the media’s work harder as the country searches for peace.
“A very foreboding sign, the journalist was killed just three days after President Salva Kiir threatened to target journalists before departing for peace talks in Addis Ababa.
“It is still too early to tell whether there is a link but this tragedy will certainly cast a pall over independent reporting in the country.
“South Sudanese journalists are increasingly forced to self-censor as a means of survival,” Rhodes said