Sir Ian Blair is facing pressure to resign after the Metropolitan Police was found guilty over the fatal shooting of Jean Charles de Menezes.

An Old Bailey jury decided the police force had broken health and safety laws and unnecessarily put the public at risk in the hours before de Menezes' death.

Met commissioner Sir Ian expressed his "deep regret" and insisted the shooting was a one-off tragedy.

And he said he would "continue to lead the Met in its increasingly successful efforts to reduce crime and to deter and disrupt terrorist activities in London and elsewhere in the United Kingdom".

Prime minister Gordon Brown and home secretary Jacqui Smith both expressed their "full confidence" in the commissioner.

However, the Conservatives and Liberal Democrats have called for him to resign, with shadow home secretary David Davis describing his position as "untenable".

Lib Dem home affairs spokesman Nick Clegg called for Sir Ian to "take responsibility on behalf of his whole organisation and resign".