The Martin Luther King Jr. K-8 School in Dorchester was evacuated briefly Tuesday morning after an odor of gas was reported in the building. Students returned when officials determined there was no danger, authorities said. Firefighters detected carbon monoxide in the Lawrence Avenue building and found the problem to be a mechanical issue, according to Boston Fire Department spokesman Steve MacDonald. Boston Public Schools spokeswoman Denise Snyder said students were moved to another school while the odor was investigated, and then returned to the King school for classes.
Laura Crimaldi can be reached at laura.crimaldi@globe.com. Follow her on Twitter @lauracrimaldi. M.G. Lee can be reached at matt.lee@globe.com. Follow him on Twitter @m_g_lee.