Scotland Yard has said it respects the rights of the media, but that publishing leaked diplomatic documents is not in the public interest.
Police have launched a criminal investigation into the leak of diplomatic emails from the UK ambassador in the US, Sir Kim Darroch.
Metropolitan Police Assistant Commissioner Neil Basu said publishing the emails could be a criminal offence.
Editors criticised an earlier statement warning against further publication.
Mr Basu said police have « no intention of seeking to prevent editors from publishing stories in the public interest in a liberal democracy ».
However, he said the Metropolitan Police had been told that the publication of « these specific documents… could also constitute a criminal offence and one that carries no public interest defence ».
« We know these documents, and potentially others, remain in circulation, » he added.
The government has already opened an internal inquiry into the publication of the memos, which were critical of the Trump administration – and prompted a furious reaction from the US president, who said he would no longer deal with Sir Kim.
President Trump branded Sir Kim « a very stupid guy » after confidential emails emerged revealing the ambassador had called his administration « clumsy and inept ».
Sir Kim stepped down as ambassador on Wednesday, saying it was « impossible » for him to continue.
Source: The Guardian