Practice and qualifying for this weekend's GP2 Asia event in Bahrain have been postponed to Friday amid continuing political tensions in the region.
A statement from GP2 said that medical personnel were required in Manama, where there were fatalities and injuries when security forces dispersed protesters overnight, rather than at the circuit.
"The second round of the 2011 GP2 Asia Series was to open today at Bahrain International Circuit with practice session starting at 11 a.m. local time," said the statement. "However, due to the current local events, the medical staff normally stationed at the circuit has been temporarily called to the city's hospitals in case of an emergency.
"For obvious safety reasons, the GP2 Series organizers have decided to postpone today's track activity until tomorrow."