Philadelphia's mayor says five people hurt on the ground when a jet crashed Friday remain hospitalized, and three of them are in critical condition.

Five people remain hospitalized Sunday after a medevac jet carrying a child patient and her mother crashed into a residential neighborhood in Philadelphia Friday night, killing seven people and leaving dozens injured.

Seven students were taken to the hospital after a “strong odor” was detected in a Taunton high school classroom Monday afternoon, officials said.

Officials say 7 students were transported to Morton Hospital for evaluation. The remaining students were released to their parents or guardians. Investigators say they did not detect any unusual readings in the building, and the Taunton Board of Health approved the building’s reopening.

Several agencies are investigating a possible hazardous materials exposure at Bristol-Plymouth Regional Technical School.