At least 30 people injured - six in critical condition - after bus heading to casino rolls onto its side on snow-covered Connecticut interstate

A charter bus heading to the Mohegan Sun Casino flipped onto its side on the snow-covered Interstate 95 Monday, sending about three dozen people to hospitals in Connecticut.

Officials say the Dahlia charter bus was on the way to the casino when it rolled over on the freeway around 12.30pm in Madison, Connecticut near exit 61. 

At least 30 of the estimated 55 people on the bus were rushed to Connecticut hospitals, as the remaining passengers were able to walk away from the scene.

According to ABC News, at least six people are in critical condition.

Officials from Yale-New Haven Hospital said they have received eight patients, as the Shoreline Medical Center received 16 patients, NBC Connecticut reported. 

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Emergency responders work at the scene of a tour bus rollover on Interstate 95 northbound on Monday in Madison, Connecticut.  At least 30 of the 55 passengers were injured in the crash

The bus was heading to the Mohegan Sun Casino when the accident happened around 12.30pm Monday

Officials from Yale-New Haven Hospital said they have received eight patients, as the Shoreline Medical Center received 16 patients

Emergency responders help three injured women into an ambulance at the scene of the crash Monday afternoon in Madison, Connecticut 

A Yale-New Haven Hospital spokesperson told WTNH 'that it took ambulances much longer than normal to get the critically injured people to the hospital due to poor driving conditions.' 

According to NBC Connecticut, people who were not injured in the accident were taken to the Madison Town Campus and another bus has also been brought in. 

Emergency responders had to remove the windshield out of the bus to remove passengers, WTNH reported.

Cody Chapman, a spokesman for the casino in Uncasville, said the bus, which is owned by Dahlia Inc., is operated by VMC East Coast. 

The highway has been closed for more than two hours as authorities warn it could be closed down for an additional two hours.  

A spokesperson for the Mohegan Sun told NBC Connecticut that all additional buses from the New York area to the casino have been rerouted and turned around until weather conditions improve.

A Yale-New Haven Hospital spokesperson told WTNH 'that it took ambulances much longer than normal to get the critically injured people to the hospital due to poor driving conditions.' Above an injured passenger arrives at Yale-New Haven Hospital on a stretcher

Emergency responders had to remove the windshield out of the bus to remove passengers

Following the crash, Connecticut Gov. Dannel Malloy issued a statement. 

'Our thoughts are with those who are injured, and we extend our gratitude to the first responders who are working to protect the safety of all those involved,' the governor said, in part. 

'We urge all those who must travel to use added caution, allow extra time to travel, and reduce speeds as conditions warrant.'

For the past few hours, snow has been coming down due to the strong winter storm Mars that hit the Northeast centered on New England Monday morning. 

About two to three inches have coated the ground in Madison, Connecticut, causing several accidents on the roads Monday morning, officials say. 

people who were not injured in the accident were taken to the Madison Town Campus and another bus has also been brought in

The Dahlia charter bus lies on the shoulder of northbound Interstate 95 Monday after it rolled over onto its side on the freeway prompting it to close down

The storm has brought howling winds, coastal flooding and threatening Cape Cod and southeastern Massachusetts with up to 18 inches of snow.

Storm Mars - which was named Sunday - had sparked a National Weather Service warning to more than two million people on the East Coast.

According to The National Weather Service, blizzard conditions had been verified on Nantucket Island early Monday afternoon, where wind gusts up to 64 mph had been clocked.

In addition, coastal flooding was reported in several locations along the coast of Massachusetts.

The highway was closed for more than two hours following the accident as authorities investigated 

Officials expected for the interstate to be fully opened back up again by at least sometime in the evening

By around 4.30pm, authorities had cleared most of the accident scene. Above the bus is pictured being towed away as crews clean up