Pakistani militia-men check the travel documents of Afghans at Chaman, on the Pakistan-Afghan border, 130 km north-west of the Baluchistan's provincial capital of Quetta on Saturday. Pakistan said on Saturday that the presence of over two million Afghan refugees in the country was a historical headache but steps were being taken to stop them from destabilising security. Lieutenant-General Moinuddin Haider, Minister for the Interior and Narcotics Control, told a news conference that a major reform of Pakistan's security had been under way long before the Afghan crisis, but it had now been speeded up.—REUTERS