Secondary schools and colleges which were closed due to heat wave conditions reopen today (Sunday) across the country although the sweltering heat is unlikely to abate soon. However, daily assemblies at these institutions will remain suspended until the heat wave becomes tolerable, according to a notice issued by the Ministry of Education. Besides, other activities at the educational institutions which are done outside the classrooms or require sun exposure will remain limited. The notice also said classes will be held on Saturdays until further notice to compensate the education losses caused by the closure of the educational institutions due to heat wave and other reasons. The schools and colleges were scheduled to open on April 21 after the end of Eid holidays but the closure was extended till April 27 due to sweltering heat across the country caused by heat wave. According to a bulletin of Bangladesh Meteorological Department, the ongoing heat wave may persist for next 72 hours starting on Sunday morning (April 28). The highest temperature of the country was recorded at 42.7 degree Celsius at Chuadanga under Khulna division on Saturday.