Pressure is growing on the FIA to cancel the Bahrain GP after a group of British peers voiced their opposition to the race going ahead in the Gulf state.
This year's grand prix at Sakhir circuit is pencilled in for the weekend of April 22, but the political situation in the country remains tense.
The Bahrain Centre for Human Rights has already urged the F1 community to boycott the race, but the teams insist it is up to the FIA to make a final decision.
Seven members of the UK House of Lords and a leading MP have now joined the chorus of people calling on motorsport's governing body to cancel the race.
In a letter to The Times, Lord Ahmad of Wimbledon, Lord Ahmed of Rotherham, Lord Alton, Lord Avebury, Lord Hylton, Lord Boswell, Baroness Falkner of Margravine and Green Party leader Caroline Lucas say they don't feel F1 should return to Bahrain.
The letter read: "We note with concern the decision by Formula One to go ahead with the race in Bahrain scheduled for April.
"The continued political crisis in Bahrain is a troubling source of instability in the Gulf region, and the lack of any move towards political reconciliation concerns those who wish to see Bahrain move in the direction of greater democratic accountability.
"It was hoped the recommendations of the Bahrain Independent Commission of Inquiry (BICI) would provide a starting point for political reform which both government and opposition forces could agree upon.
"However, two months on we see an entrenchment of the positions of both sides which risks letting more extreme voices dictate the progress of the conflict.
"Given the current dire situation, with daily street protests and the deaths of more civilians, we do not believe that the time is right for Formula One to return to Bahrain."
