LITTLETON, N.H. — Investigators interviewed the driver of a bus that overturned in the median of a slick New Hampshire highway, injuring 23, and authorities said they haven’t ruled out criminal charges.

The bus was carrying about two dozen Koreans from Quebec to Boston when the driver lost control on Interstate 93 in Littleton, near the Vermont border, at about 8:15 p.m. Monday. A light snow had fallen, bringing with it intermittent fog. Most of the passengers resumed their trip today.

The bus accident was the third in the Northeast this month, including a crash in New York City in which 15 people were killed.

The driver in the New Hampshire crash was interviewed as part of the investigation, which is ongoing, Lt. Todd Landry of the New Hampshire State Police said. “Charges have not been ruled out at this point,” he said.

Landry said the driver’s history was being looked at, “but it would be premature for me to say anything about it.” The driver had suffered a minor injury in the accident and was released from a hospital Monday night.

Police said five passengers were seriously injured and were taken to Littleton Regional Hospital. Debra Lynaugh, an administrative assistant for community relations at the hospital, said Tuesday that two of them were transferred to Dartmouth-Hitchcock Medical Center in Lebanon, one was still at the hospital in stable condition and two were released Monday night.

Eleven people were treated for lesser injuries and seven for minor injuries at other hospitals.

On March 12, a bus headed from a Connecticut casino to New York City’s Chinatown crashed into a pole in the Bronx, killing 15. Investigators are looking into whether the driver fell asleep or was distracted at the wheel. He has not been charged.

Last week in New Jersey, a bus crashed as it traveled from New York City’s Chinatown to Philadelphia, killing the driver and a passenger and injuring dozens of others.

New York increased its enforcement of tour buses after its crash, pulling buses and drivers off the road over the weekend at checkpoints statewide, officials said.