BOSTON (AP) - The general manager of the Boston area's troubled public transportation agency is out after just 15 months on the job. State Transportation Secretary Stephanie Pollack announced Tuesday that Massachusetts Bay Transportation Authority General Manager Luis Ramirez will be replaced by Steve Poftak. Ramirez signed a three-year contract in August 2017 even though he had no public transit experience. Poftak is the current vice chairman of the MBTA's fiscal control board.

WOBURN, Mass. (AP) - A Massachusetts doctor has been charged with involuntary manslaughter in the death of a patient who overdosed on opioids he prescribed. Attorney General Maura Healey's office said Tuesday that 76-year-old Richard Miron has also been charged with illegally prescribing opioids and defrauding the state's Medicaid program. Healey's office says it's the first time the state has charged a doctor with manslaughter for an opioid overdose death. It wasn't immediately clear if Miron has an attorney.

BOSTON (AP) - Massachusetts lawmakers are criticizing natural gas companies for increasingly turning to outside contractors and cutting back on staff. State lawmakers at a hearing Tuesday also questioned the independence of a consulting company Gov. Charlie Baker has hired in the wake of September's natural gas explosions and fires. Tuesday's hearing focused broadly on the safety of the state's natural gas systems following September's natural gas explosions in the Merrimack Valley.

SALEM, Mass. (AP) - A third retail marijuana shop is set to open in Massachusetts. Alternative Therapies Group in Salem has received final licensing approval from the Massachusetts Cannabis Control Commission and could begin retail sales as soon as this weekend. The shop currently operates as a cannabis dispensary serving registered patients. The first two recreational marijuana shops on the U.S. East Coast opened last month in Leicester and Northampton and have generated more than $7 million in sales.

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