Tajikistan launched a manhunt on Monday for Islamist militants blamed for the deaths of at least 25 soldiers in the latest in a string of attacks to hit the volatile Central Asian state. The country's deadliest attack this year occurred Sunday when insurgents ambushed a military convoy in the mountainous Rasht Valley region some 150 miles east of the capital Dushanbe. The ministry blamed the attack on an international "terrorist" group led by a charismatic former Tajik civil war commander called Mullo Abdullo, who is believed to have entered the country from his safe haven in Afghanistan.