A number of Formula 1 teams expect the Bahrain Grand Prix to be called off amid security concerns caused by civil unrest.

出于安全考虑，一些F1车队希望巴林大奖赛能被取消。

F1 boss Bernie Ecclestone says no teams have expressed concerns to him.

A statement from the Formula One Teams' Association on Tuesday said it was down to the FIA to cancel the race.

Teams will meet Ecclestone at the weekend when a decision is expected. However authorities remain confident the race will go ahead.

Violence between protesters and security forces erupted again on Bahrain's streets earlier this year after unrest during the 2011 Arab Spring led to last year's Bahrain GP being cancelled.

Unlike last year, the Bahrain authorities are in no mood to cancel the race themselves, so the decision rests with the FIA this time.

Bahrain's majority Shia population have been demanding democratic reforms from the country's Sunni rulers, and the government has tried to quell¹（平息，镇压） their protests.

The Bahrain race organisers argued last week that holding the GP would have an important unifying² role in the country and Ecclestone has said he has no doubts about staging the race, scheduled for 22 April.

Former world champion Damon Hill said this week that Formula 1 should re-think plans to hold the event.