Two bound-together bodies that washed up on shore along the Hudson River in New York City in a suspected suicide pact have been identified as missing sisters.

The New York Police Department says the bodies that were found Wednesday lying on rocks along the river were 22-year-old Rotana Farea and her 16-year-old sister, Tala Farea, both of Fairfax, Virginia.

They had seemingly both jumped off the George Washington bridge and neither body showed signs of trauma, but the cause of death remains unknown.

The New York Police Department says the bodies that were found Wednesday lying on rocks along the river were 22-year-old Rotana Farea (left) and her 16-year-old sister, Tala Farea (right), both of Fairfax, Virginia

The bodies of the two women that were bound together by duct tape washed up from New York's Hudson River on Wednesday. Police are seen here removing one of the bodies

The bodies were kept together with duct tape at the waist so the pair faced each other.

Police said both were fully clothed in black jackets with fur trim and black leggings when their lifeless corpses were spotted near Riverside Park on the Upper West Side of the city.

Although authorities arrived around 2.40pm to the scene near West 68th Street and Riverside Boulevard, it wasn't until 5pm that medical examiners removed the young women from the riverbank.

Authorities received a 911 call around 3pm from a passerby who spotted the two bodies floating in the water off the city's Upper West Side neighborhood

Authorities can be seen carrying two stretchers as they cleared the bodies from the scene

Police believe the women may have jumped from George Washington Bridge (pictured) before their bodies floated six miles down the river, where they were spotted at Riverside Park

The bodies were laying on rocks near the river when authorities arrived on the scene

EMS pronounced them dead at the scene after they are believed to have floated six miles down the cold water.

Tala was last seen August 24, according to a posting on the website of the National Center for Missing and Exploited Children.

The petite brown-eyed teenager was only 5ft and 130lbs.

The alert said she might be with her sister.

Police said both women were fully clothed and neither body showed any signs of trauma

The bodies were laying on rocks near the river when authorities arrived on the scene