President Vows to Announce France's Measures Against Russia After Skripal Poisoning

"Everything leads us to believe that responsibility is, in fact, attributable to Russia," Macron told reporters, adding that "France condemns this unacceptable attack on the soil of our ally and I want to express my solidarity to [UK Prime Minister] Theresa May", RIA Novosti reported.

Earlier in the day, French Foreign Minister Jean-Yves Le Drian said that Paris would coordinate with the United Kingdom its response to Russia’s alleged poisoning of its former spy in Salisbury.

Skripal and his daughter Yulia were found slumped unconscious on a bench in Salisbury after being exposed to what British experts have identified as a Russian-made nerve agent.

Russian officials have rejected London's claims that Moscow was in any way involved in the incident.

Russian Foreign Minister Sergei Lavrov stressed that Russia was ready to cooperate on the investigation but needed to have access to the case materials, including samples of the substance in question.