■ POISON PLOT A janitor accused of trying to poison her co-workers at Plainridge Park Casino by pouring chemical cleaner into their drinks is facing criminal charges, according to the state attorney general’s office. Alexandria Martel, 23, of Attleboro was arrested Tuesday by police assigned to the Massachusetts State Police Gaming Enforcement Unit, according to Chloe Gotsis, deputy press secretary for the office. Authorities asserted that Martel poured chemical cleaner into two of her co-workers’ sodas left in a storage room. The victims discovered this after they noticed it tasted like it contained chemicals, the office said. According to a police report filed in court, police reviewed surveillance video that showed Martel in the storage room standing in front of one of her co-worker’s cups. “You then see her right arm raise up as if she is pouring something,’’ the report stated. When police questioned her about the incident, Martel admitted to pouring “a small amount’’ of “yellow’’ cleaner into a co-worker’s beverage. “When asked if she had a problem with the [victims], she said she has had problems with them for a while,’’ the police report states. “She said [one victim] would accuse of her of not cleaning her bathrooms and not inviting her [to] breakfast with coworkers after work.’’

■ BUS COLLISION An MBTA bus driver and two passengers were taken to the hospital Thursday morning after a car and bus collided on Interstate 93 southbound in Charlestown, officials said. A 41-year-old Everett woman driving a 2016 BMW X6 coupe attempted to enter the high-occupancy vehicle lane by crossing over rubber strips, causing a bus already in the lane to strike the driver’s side of the car around 9 a.m., State Police spokesman Dave Procopio said in an e- mail. Procopio said the 39-year-old MBTA bus driver and two passengers were taken to Massachusetts General Hospital with minor injuries. Three other passengers said they would seek medical treatment on their own, he said. MBTA spokesman Joe Pesaturo said the driver and passengers suffered neck pain as a result of the crash. The remainder of the 16 total passengers were transferred to another bus that arrived at the scene, Procopio said. State Police plan to cite the BMW’s driver for traffic violations, he said.

■ STUDENT ARRESTED A Clinton High School student was arrested after allegedly making threats while in school Wednesday, and during a search of his home after he was in custody, Clinton police said they recovered a .45-caliber handgun, ammunition, and $15,000 in cash. The student was identified by police as 18-year-old Nathan A. Steele. He is facing numerous charges in Clinton District Court including illegal possession of a firearm, willfully communicating a threat, and disrupting a school assembly. In a Facebook posting, Clinton police emphasized that Steele was not armed while inside the school and that a Sig Sauer pistol was discovered in his home during a follow-up investigation.

■ GANG BUST The purported leader of a Rhode Island motorcycle gang was being held without bail after his arraignment on more than 220 charges. Deric McGuire was arraigned Thursday in Providence district court. He was one of more than four dozen alleged gang members arrested Wednesday. Authorities say McGuire is the leader of the Rhode Island Pagans. McGuire did not enter a plea and it couldn’t immediately be determined who represents him. State Police said search warrants were executed in 29 municipalities, along with four in Massachusetts. The raids resulted in the seizure of 53 guns and large amounts of heroin, marijuana, and cocaine. According the police, the raids involved the use of explosives to breach fortified buildings. They said the raids were the result of a yearlong investigation. (AP)