Sean Dyche is was not happy with the decision for Arsenal's last penalty
Burnley were 1-0 down for much of the second-half against Arsenal before being awarded a late penalty for a foul on Ashley Barnes.
The striker was brought down in the area by a clumsy challenge from Francis Coquelin and Andre Gray converted to make it 1-1.
The game looked destined for a draw before Ben Mee clashed with Laurent Koscielny and referee Jon Moss awarded the Gunners a penalty in the seventh minute of added time.
Alexis Sanchez scored to win the game 2-1 but Dyche thinks the penalty should never have stood. blaming the officials for failing to see Koscielny was offside.
"It's a tough day for us in the end," Dyche said.
"To lose a game in that fashion, with an offside not given is tough, particularly when you come to tough places like this.
"We never take anything for granted.
"We know how tough this division is but you need officials to make the right decisions and that is the shame today.
"They have to be brave have officials at places like this, I understand that, but you've got to think it has to be given [offside]."