French supermajor Total has evacuated its remaining staff from Venezuela and its bank accounts there have been blocked as a result of US sanctions, the company's chief executive said on Thursday.

"The priority has been clearly the safety of all our people and everybody has been evacuated since last Monday," Patrick Pouyanne, the chief executive, told investors on the company's earnings call, according to a Refinitiv Eikon transcript.

According to Total's website, the company had a staff of 50 in Venezuela, but a source familiar with the operation there said the number had dwindled to just "administrative" staff who have now been evacuated.

The US imposed sanctions on Venezuela on 28 January to cut off oil revenue to President Nicolas Maduro, who won re-election last year in a contest widely seen as fraudulent.

Pouyanne said Total will manage its Venezuela operations from Europe, instead of from the US.