ISIS claimed responsibility on Monday for an attack that killed four Syrian security personnel the day before, the SITE Intelligence Group reported.“The soldiers of the Caliphate attacked a patrol for the apostate Syrian government on the Maaret al-Numan road yesterday with machine guns,” the group said according to a statement shared by SITE, which monitors extremist groups.For all the latest headlines follow our Google News channel online or via the app.Read more: Gunmen kill four Syrian security personnel in Idlib