The head of one of Somalia's most popular radio stations, HornAfrik, was fatally shot by three masked gunmen in the capital, Mogadishu, Shabelle Radio reported.
Said Tahlil Ahmed was killed Wednesday as he and other journalists were walking to a press conference called by Somalia's main insurgent group, al-Shabaab.
The director of Shabelle Radio, Mukhtar Mohamed Hirabe, was also injured in the attack, reported dpa.
Tahlil was appointed director of HornAfrik after its founder, Ali Sharmarke, was killed in a roadside bombing in Mogadishu in August 2007.
Eleven journalists have been murdered in Somalia since 2007, four of whom worked for HornAfrik.
The New York-based Committee to Protect Journalists condemned the murder. It said local journalists had told the committee that al-Shabaab had been unhappy about local media coverage of last week's presidential election.
However, al-Shabaab denied it had killed Tahlil and said it would find whoever was responsible.
Members of parliament meeting Saturday in neighbouring Djibouti elected moderate Islamist Sheikh Sharif Sheikh Ahmed.
Sheikh Sharif was the head of the Islamic Courts' Union (ICU), which ruled Mogadishu for six months in 2006 before being ousted by invading Ethiopian forces.
Al-Shabaab, a splinter group of the ICU, opposes the new president.
The Ethiopian invasion sparked a bloody insurgency, which has claimed the lives of more than 16,000 civilians and displaced about 1 million.
The international community is hopeful that Sheik Sharif could bring an end to the conflict, particularly since the hugely unpopular Ethiopians have now departed.
However, al-Shabaab has vowed to keep fighting until Islamic law is enforced across Somalia.