Manchester United goalkeeper Sergio Romero looks shaken as firework thrown by Zorya fans explodes next to him
There are also reports of a laser pen being shone at Daley Blind during Europa League match in Ukraine

MANCHESTER UNITED'S trip to Odessa to face Zorya Luhansk already looked pretty challenging with the match played on an icy pitch in sub zero temperatures.
But that turned out to be the least of their worries as some despicable scenes took place in the first half.
Fans of the Ukrainian side behind Sergio Romero's goal throw a firework on pitch the midway through the opening 45 minutes, which exploded on the edge of the six yard box.
The United goalkeeper looked shaken as he went to get the ball and saw the explosion just a few feet away.
BT Sport's commentary team also claims that a laser pen has been shone in Daley Blind's face throughout the first period.
United need a draw to qualify but may progress with a defeat if Feyenoord fail to beat Fenerbache.
The incident follows fighting in the stands between United and Zorya fans earlier in the evening.