Concerned over increasing acts of sectarian violence by all groups in Bahrain, US Secretary of State Hillary Clinton has called for calm and restraint by all sides in the country. Clinton said at a news conference in Cairo that the use of force and violence from any source will only worsen the situation and create a much more difficult environment to arrive at a political solution. She said, America's advice to all sides, is that they must take steps now to negotiate toward a political resolution. Ms. Clinton also spoke to her Saudi counterpart over phone to discuss the current situation in Bahrain as the Saudi Arabia has sent troops to Bahrain.