DHAKA (TIP): At least four persons were killed as fresh violence erupted on October 29 across Bangladesh on the final day of a 60-hour opposition strike demanding a caretaker regime to oversee the next general election, taking the overall death toll in the political unrest to 20. A youth leader of the ruling Awami League was hacked to death by unidentified persons in Chittagong, police said. Reports from Cox’s Bazar district said two workers of the right-wing Jamaat-e-Islami , a key ally of the main opposition BNP, died when police fired on protesters. Witnesses said a BNP cadre was killed in clashes between police and protesters in western Magura district. An injured worker of the Awami League died overnight in northern Kishorganj, officials said. The BNP-led 18- party opposition alliance called the shutdown to press for the restoration of the neutral caretaker government system to oversee the next election. The polls are to be held by January 25, 2014. Supporters of BNP and Jamaat torched a bus in Manikganj and vandalized at least eight vehicles in Gazipur . Opposition activists earlier exploded crude bombs in front of Awami League leaders houses in Dhaka.