New Delhi, July 5 - The Italian government's special envoy to India, Staffan de Mistura, will fly back to the Asian country next week to continue talks about two Italian marines charged with murdering two Indian fishermen after allegedly mistaking them for pirates 18 months ago. The decision to send back de Mistura in a bid to hasten the drawn-out case was taken at an hour-long cabinet meeting Friday. De Mistura last met India's Foreign Minister Salman Khurshid in New Delhi on June 10. After the talks, an Indian government spokesman said the "unprecedented" nature of the case has made it slow to resolve, "We are working together as friendly countries to seek...a solution acceptable to both," Spokesman Syed Akbaruddin said. Massimiliano Latorre and Salvatore Girone are on trial for shooting and killing fishermen Valentine (aka Gelastine) and Ajesh Binki while guarding a merchant ship off the coast of the southern Italian region of Kerala in February 2012. The pair are currently waiting for a new investigation to be completed by India's NIA anti-terrorism police. The two countries suffered a diplomatic row and relations have been tense since the shooting. Italy has contested India's claim that it has jurisdiction over the case, arguing that the deaths occurred in international waters.