Bangura made his international debut in his country's the 4-1 defeat to Nigeria - a match which they probably needed to win to stay in the World Cup qualifiers.
But Boothroyd told Sky Sports News: "I sat down and had a chat with Al and it has been dealt with internally.
"As far as I'm concerned that is the end of it. He's a young man who has made a mistake.
"We won't hit him over the head with it but I hope he won't do it again."
Boothroyd helped Bangura fight against deportation to his native country last winter after fleeing as a 15-year-old and the Vicarage Road boss hopes the 20-year-old has learnt his lesson.



