LONDON - London metropolitan police are investigating an incident involving Chelsea striker Didier Drogba who threw a coin back into the crowd during the League Cup loss to Championship side Burnley at Stamford Bridge on Wednesday.

"We are investigating the incident as a whole," a police spokesman said on Thursday. "It's obviously very early stages at the moment." Drogba had gestured to Burnley fans while celebrating his first goal of the season. Second-tier team Burnley won 5-4 on penalties after the fourth round tie ended 1-1 following extra time.

"I tried to celebrate the goal and I received some things at me," he told the Chelsea Web site (www.chelseafc. com). "The mistake I did was to throw it back so if someone was hurt I just want to apologize for it. This is not something I should show in a football match. It was an incident in the heat of the moment and I regret it."