TOTTENHAM'S clash at Ferencvaros was halted - when players were unable to see each other after fans hurled smoke flares on.
Referee Igor Pajac signalled he couldn't see all the pitch in a farcical fume-filled situation early in the second half of the Europa League tie.
And Pajac ordered a brief halt to proceedings - until the air cleared.
Spurs were leading through Pape Matar Sarr's fine goal on 23 minutes.
And it was Sarr who was at the centre of things again - but for a bizarre reason - four minutes after the break.
The Senegal midfielder was unable to clearly identify 17-year-old team-mate Mikey Moore as smoke swept across the field in Budapest.
Pajac and players from both teams were bemused - with play promptly halted.
It cleared within a minute - with Spurs left to continue a testing tie.
However, bemused fans found mirth from the murky interlude.
One joked: "Better atmosphere than the Premier League stadiums."
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Another posted: "Spectacular better than watching Arsenal match to be honest."
A third just said: "What is going on here."
And more than one viewer called it "crazy".
But although football chiefs might take a dim view of the incident, one fan claimed it was "amazingly fun".
Brennan Johnson then notched a clinical fifth goal in five matches to double Spurs' lead in the 86th minute.
But Ferencvaros cut the deficit to 2-1 through Barnabas Varga's volley.