Pete DohertyPete DohertyPete Doherty has said he's sorry for returning to drugs.

He's admitted it was a "stupid action" for which he "feels only shame".

This comes after The Sun newspaper published shocking pics showing a man they claimed was Pete injecting herion.

Today, Pete's record company has issued a statement saying Pete is "looking to check himself back into rehab".

The statement from EMI reads: "Peter Doherty would like to apologise to the medical staff, fans and well-wishers who have helped and encouraged his progress in fighting his addiction to heroin.

"His ongoing rehabilitation was a source of such pride to him that Peter and those closest to him thought that he was close to winning his personal battle with the drug.

"However, Peter sadly relapsed last week and is now looking to check himself back into a rehab clinic so that he can try to continue the hitherto excellent attempts he had made to break free of heroin.

"He realises that he has not only let himself down but has let down those who trusted and encouraged his efforts and he is filled with remorse for what he describes today as 'a stupid, stupid action for which I feel only shame'."

Pete recently spent six weeks in rehab, and was freed from a drug treatment order by a judge, after he tested negative for crack cocaine and herion.