DHAKA — Thousands of riot police patrolled the streets of the Bangladeshi capital Dhaka on Tuesday as a nationwide strike called by the main opposition party brought much of the country to a standstill.

Bangladesh tonight hanged the five ex-Army officers, convicted for assassinating the country’s founder Sheikh Mujibur Rahman, almost three decades after he was killed in a military coup. The five death row convicts were hanged past midnight (local...