Amateur videos posted on a social media website allegedly show protesters and riot police clashing in Bahrain ahead of Sunday's Formula One Grand Prix.
One of the clips, said to be shot in the village of Nuwaidrat, purports to show masked protesters throwing petrol bombs and lighting tyres in a street. A second clip, also said to be filmed in Nuwaidrat, purports to show riot police firing in the street.
ITV News and Reuters cannot verify the content of these video clips:
Bahrain police fired tear gas in clashes with rioting youths two days before the Formula One Grand Prix in the Gulf kingdom.
The organisers of this Sunday's F1 Grand Prix in Bahrain have vowed that violent protests against the race will not stop it taking place.