The Sri Lankan government has accused the LTTE of planning and carrying out chemical attacks. In 2007 the Sri Lankan Prime Minister Ratnasiri Wickremanayake claimed that security forces had intercepted rebels transporting large quantities of acid in preparation for a major attack. In 2009 the Sri Lankan military reported that they had captured a stock of gas masks and chemical resistant suits from an LTTE camp in Mullaithivu. The Defence Ministry claimed that the LTTE had been carrying out low impact chemical gas attacks during the course of the final Eelam war, and that this discovery was evidence of a plot for a massive chemical attack. Foreign Secretary Palitha Kohona stated that the government has requested an investigation from the Organisation for the Prohibition of Chemical Weapons into charges of chemical weapons use by the LTTE.