QUETTA Two containers carrying supplies for NATO forces deployed in Afghanistan were set on fire in Kuchlak area, outskirts of Quetta on Monday. According to sources, three containers heading towards Afghanistan, were stopped by unidentified people near Kuchlak area. They set ablaze two vehicles on fire. The containers were completely gutted before firefighters reached the site. Miscreants, however, managed to flee from the scene soon after the act of arson. Sources said police have arrested a suspect and investigations are underway. No group has claimed responsibility for the attack.