Three people are dead and four others are seriously injured after a boat accident took place in the waters near the Wantagh State Parkway.

Investigators say the accident occurred Sunday at around 7:30 p.m. According to officials, the 40-foot boat crashed into marshland just east of the Goose Neck Bridge. They say speed may have been a factor, but relatives of the deceased are questioning the theory.

Police say the boat's captain, George Canni, of Copiague was ejected from the craft and pronounced dead when rescuers arrived. Canni's wife Theresa and 50-year-old Joseph Sugamele, of Massapequa were the others killed.

The four who survived are at NUMC in critical but stable condition. News 12 Long Island is told two have broken necks, one has two broken legs and the other has a serious brain injury.