SRINAGAR, India, Jan 6 (Reuters) - At least one person was killed and 30 others were wounded on Saturday when suspected separatists lobbed a grenade at a crowded marketplace in Indian Kashmir, police said. "Unidentified militants threw a grenade at an army patrol but it missed the target and exploded in a busy market," Farooq Ahmad, a police official, told Reuters. None of the region's nearly ten militant groups has claimed responsibility for the attack in Shopian town, 60 km (37 miles) south of Srinagar, Kashmir's summer capital. "Some of the injured are in a serious condition and have been shifted to hospitals in Srinagar," Ahmad added. Authorities say violence has steadily decreased in Kashmir since India and Pakistan -- who have fought two wars over Kashmir -- began a peace process in 2004. But people are still killed in daily shootouts and occasional grenade attacks. Officials say more than 40,000 people have been killed in the Muslim-majority region in a 17-year revolt against Indian rule. Human rights groups put the toll at around 60,000 dead or missing.