A team of Al Jazeera journalists, reporting from Syria's western province of Hama, has suffered a barrage of sniper fire that has killed a local guide who was working with the group, Al Jazeera reported.
Abu Yezen al-Hamoui, a local Syrian journalist who had been working with Al Jazeera correspondents, was killed in the attack on Wednesday.
Activists said they saw al-Hamoui's body been taken away following the attack. Al Hamoui's death takes the number of journalists killed in 2012 to at least 28, the Committee To Protect Journalists (CPJ) said.
At least 20 people, including eight children, were also killed in a separate attack as Syrian army tanks shelled a village in the northern province of al-Raqqa, an activist group said.
Dozens of other civilians were also injured by the government's attacks in the village of Qahtania on Wednesday, the Syrian Observatory for Human Rights reported.
"At least 20 people, among them eight children and three women, were killed in shelling by regime forces of farmlands in Kahtaniyeh village, west of the city of Raqqa," the UK-based group said.
Raqqa has seen an escalation of violence in recent months after rebels have launched an assault to oust regime forces from several areas of the province, strategically located on the Turkish border.