PESHAWAR (INP) - Peshawar police on Monday arrested four US citizens travelling in two cars for not having necessary documents, but released them later after they submitted their documents. According to details, police during routine checking in University Town area stopped two cars with tainted glasses and found that the four US nationals travelling in the cars were not possessing complete documents. The four US nationals, Jaffrey, Christopher, Aiwendray, and Baselay identified them as members of the US consulate.