Update, 5:23 p.m., Aug. 5: Massachusetts State Police have released the medical conditions of the victims of Sunday morning's accident in the Tip O'Neil Tunnel. They have also released the names of the two drivers. Here they are.

The 4-year-old girl, from Malden, is in critical condition at Massachusetts General Hospital.

The 24-year-old woman, from Malden, is in critical condition Massachusetts General Hospital.

The 5-year-old boy was released from Massachusetts General Hospital.

Axel Delgado, 26, of Malden, was driving the 4Runner that rolled over. He was released from Massachussets General Hospital. He has been summonsed for operating after his license was suspended and for a child passanger seatbeld violation.

Fatima Terif, 29, of East Boston, driver of the Malibu, was released from Tufts Medical Center. She was issued a civil citation for a marked lanes violation.

The 21-year-old Dorchester woman and 24-year-old Dorchester man were released from Tufts Medical Center.

Original story:

An early morning rollover accident in the Tip O'Neil Tunnel sent a 4-year-old girl to Massachusetts General Hospital with life-threatening injuries, according to state police.

A 26-year-old Malden man, who was driving the car, and a 24-year-old Malden woman were also sent to Boston area hospitals as a result of the accident.

The 4-year-old girl was partially ejected from the car, state police said.

Three other passengers, a 24-year-old Dorchester man, a 21-year-old Dorchester woman and a 5-year-old boy, were also transported to hospitals. So was a 29-year-old East Boston woman who was driving another car involved in the accident.

One of the women in the car—it's not known if it was the Malden resident or the Dorchester resident—was fully ejected from the car and also transported to Massachusetts General Hospital with serious injuries.

According to a report from Massachusetts State Police, the accident happened at about 12:20 a.m. on Interstate 93 northbound just south of Exit 23 in the Tip O'Neil Tunnel.

The report says the Malden residents, along with their passengers, were in a 1997 Toyota 4Runner when a 2008 Chevrolet Malibu, operated by the East Boston woman, tried to move into their lane.

To avoid the Malibu, the 4Runner steered left, then immediately steered back right in an attempt to avoid a collision with the concrete barrier, according to the report.

The sudden maneuvers caused the Malden resident to lose control of the 4Runner, and it rolled over and slid to a stop, resting on the driver's side, in the middle of the highway. The Malibu hit the concrete barrier and "came to rest" in the left lane of the highway.

Initial reports indicate a good samaritan attempted to assist the 4-year-old girl who was partially ejected, though state police have not been able to confirm that, according to the report.

Three lanes of traffic were closed as a result of the crash. They were open again later in the morning.

Troop E of the Massachusetts State Police, the State Police Collision Analysis and Reconstruction Section and the State Police Crime Scene Services Section are investigating the accident.

Police could bring charges against operators of both vehicles depending on the outcome of the investigation. 

The Malden man driving the rolled-over 4Runner could face charges if it's determined the 4-year-old girl was not properly secured in a car seat.