MOSCOW, June 30 - A journalist with Russian state television has been shot dead in eastern Ukraine despite a shaky truce between pro-Moscow separatists and Ukrainian forces, the reporter's employer said on Monday. Anatoly Klyan, a 68-year-old cameraman, was among a group of Russian journalists on a reporting trip in the separatist city of Donetsk, Channel One said. "Once on site, shots rang out from the soldiers' side. Anatoly Klyan was mortally wounded in the stomach," said the channel. Russian national television stressed the journalist -- the third media worker to have died in eastern Ukraine over the past two weeks -- had been killed despite the truce which is set to expire later Monday. Demanding that perpetrators be punished, Russia's foreign ministry said in a statement that "Ukrainian forces clearly don't want a de-escalation of the conflict in the country's east and are obstructing the already fragile truce". Moscow-based investigators, who have earlier launched a probe against Ukrainian armed forces, said they had opened a new probe over Klyan's killing. The driver of the vehicle transporting the journalists was wounded and in hospital on Monday morning, said a reporter from news channel Rossiya 24. Several other television crews including those from pro-Kremlin LifeNews and liberal Ren TV were also shot at but escaped unhurt, said Channel One. A correspondent for Mir 24 television channel said his crew had not received any injuries but lost a taxi driver. Klyan had worked 40 years for the Russian channel and had carried out several missions in conflict zones, his employer said. His death brings to six the number of journalists killed in Ukraine since the start of the year, according to Reporters Without Borders. On June 17, two members of a Russian television crew were killed in the ex-Soviet state's separatist east. They were the first Russian media workers confirmed to have died in eastern Ukraine since fighting erupted there in mid-April.