In Yemen, police have arrested a woman from the capital Sanaa in connection with detection of explosive packages in US bound planes at Dubai and London. Meanwhile British Prime Minister David Cameron has said the device in a package sent from Yemen and found on a US-bound cargo plane was designed to go off on the airplane. Cameron told reporters at his country residence, Chequers, that the authorities have immediately banned packages coming to the UK from Yemen. Many other countries have also suspend air cargo from Yemen Germany has also banned air cargo from Yemen. German Interior Minister Thomas de Maiziere announced yesterday that his country will not accept any freight coming from Yemen. France has already suspended air freight from Yemen in the wake of the interception of two parcel bombs in Dubai and Britain. Belgium called for “greater vigilance” of flights between Yemen and the United States. Airports across the US have been put on high alert following discovery of the packages. The terror group al-Qaeda is believed to be behind the plot. Airports across the US have been put on high alert following discovery of the packages. US President Barack Obama has thanked British Prime Minister Cameron and Saudi King Abdullah for helping to disrupt a terror plot, but reiterated a call to Yemen for closer cooperation.