David Cameron has criticised the execution in China of Akmal Shaikh, a British citizen.
"I deplore and deeply regret the fact that the Chinese authorities have executed Akmal Shaikh, and did not heed the pleas for clemency made in his case by the British Government, by the opposition parties, by his family and by others", he said.
Cameron noted that there were "serious concerns" about Mr Shaikh's mental health, and said it was "appalling" that these concerns were not independently assessed during the more than two years Mr Shaikh was in custody, and taken "properly into account" in the judicial process.
"We supported the Government in the efforts they have made, and I join with them in sending my sympathy to Mr Shaikh's family and friends", he added.