Vladimir Putin vows revenge on those responsible for Russian airplane bombing over Egypt

Russia ramps up attacks, admits TNT used to down Sinai plane.

President Vladimir Putin vowed to hunt down those responsible for blowing up a Russian airliner over Egypt and intensify air strikes against Islamists in Syria, after the Kremlin concluded a bomb had destroyed the plane last month, killing 224 people.

“We will find them anywhere on the planet and punish them,” Putin said at a sombre Kremlin meeting broadcast on television.