Saudi Arabian troops have crossed into Bahrain after the tiny Gulf state's rulers asked for help from neighbouring Sunni Arab states to quell a two-month uprising that threatens their 200-year-old political dynasty.
Riyadh said it had responded to a "security threat" by deploying its military in the streets of its tiny near-neighbour. The Saudi troops have been asked to protect strategic sites, such as bridges and government buildings. Bahrain's rulers said the Saudi forces had crossed the 16-mile causeway linking Saudi Arabia with the Arab world's smallest state as part of a contingent of troops from the Gulf Co-operation Council.
Saudi authorities did not give details on the size of the force, which some reports estimate to be about 1,000-strong. More...