There are two routes from Pakistan to Afghanistan (both were closed in November 2011 following the Salala incident and reopened in July 2012). Both routes start in Karachi, Pakistan's principal port in its southern Sindh province, on the Arabian Sea. From there, one route crosses the Khyber Pass, enters Afghanistan at Torkham, and terminates at Kabul, supplying northern Afghanistan. This route is approximately 1,000 miles long. The other passes through Balochistan Province, crosses the border at Chaman, and ends at Kandahar, in the south of Afghanistan.