Six people have been arrested after flares were thrown onto the pitch during Arsenal's Champions League match against Galatasaray at the Emirates last night.
The first half of the Gunners' 4-1 victory was marred by scenes in the away end, which held supporters of the Turkish club.
A number of flares were hurled onto the pitch shortly after Felipe Melo escaped a possible sending-off following what appeared to be a two-footed tackle on Arsenal's Alexis Sanchez.
Goalkeeper Fernando Muslera removed some of the flares from the pitch, while Wesley Sneijder walked over to the Galatasaray fans to call for calm.
"We are aware of a number of flares being ignited and thrown on to the pitch at the Emirates Stadium," a police spokesperson told PA.
"There were also some flares thrown near to the Tollington Arms on Hornsey Road. Police will be reviewing CCTV footage from inside the stadium and of the surrounding streets."
Two of the six arrests made were for entering the stadium with flares.
