Italy's European Championship qualifier with Croatia at the San Siro was suspended after 75 minutes as Croatia fans threw flares and fireworks on to the San Siro pitch, leaving the stadium covered with smoke.
Police have arrested 16 Croatia fans for interrupting a European Championship qualifier against Italy by throwing fireworks onto the field.
The referee marched the players down the tunnel with the score at 1-1 as the smoke continued to grow and riot police attempted to restrain the Croatian supporters. UEFA are expected to launch an investigation into the incidents at the San Siro in the coming days.
The players were off the field for 10 minutes before they returned to the pitch after emergency services extinguished and removed the flares.