As the attack on Homs continues for a 19th day running, Syrian activists claim at least 27 people have been killed including American journalist Marie Colvin.
Colvin was in Homs working for the British Sunday Times when she and French photographer Remi Ochlik were killed on Wednesday.
Another three foreign journalists have also been injured, including a freelance reporter on French daily Le Figaro.
The Syrian ambassador to France has been summoned to Paris by French Foreign Minister Alain Juppe, who called on the Syrian government to respect its humanitarian obligations.
Juppe will also attend the Friends of Syria meeting in Tunisia on Friday.
It is not only foreign media that have experienced casualties in Homs. Syrian journalist Rami Al-Sayed was killed in shelling on Tuesday. His brother posted footage of the reporter’s dead body.
Al-Sayed, who ran a YouTube channel and posted footage of the attack on Homs, had returned to Syria to document what was going on in the city.
Activists claim the government is targetting journalists.