Grisly new details have emerged about the alleged MS-13 gang-related killing of 15-year-old Damaris Alexandra Reyes Rivas (pictured)

Shocking new details have emerged about the alleged MS-13 gang killing of a 15-year-old girl amid a love triangle and intra-gang rivalry in Virginia.

Damaris Alexandra Reyes Rivas' was forced to stand in freezing water and stabbed 13 times by a teenage love rival.

Damaris and her killer, Venus Romero Iraheta, were both lovers of aspiring gang leader, 21-year-old Christian Sosa Rivas - who was murdered days earlier.

Iraheta believed Damaris was to blame for Christian's death, and allegedly kidnapped the 15-year-old and told her 'see you in hell' as she repeatedly stabbed her, prosecutors said Thursday.

Prosecutors announced Thursday they believe 17-year-old Venus Romero Iraheta was the chief attacker who carried out the brutal murder, before they revealed some of the horrible abuse Rivas allegedly suffered before she died.

FBI Special Agent Fernando Uribe told the court the killing was the result of a love triangle involving the two teenage girls and 21-year-old Christian Sosa Rivas - who was found dead on January 12.

Uribe testified that another MS-13 member called Damaris on January 8 and arranged to pick her up, with the 15-year-old thinking they were going to smoke marijuana, the Washington Post reports.

However, she was instead driven by the gang member - 18-year-old Jose Castillo Rivas, who is also charged in the death and had a preliminary hearing Thursday - to an abandoned area near Springfield’s Lake Accotink Park, where she was questioned by Iraheta about her relationship with Christian Rivas and where he was.

Prosecutors announced Thursday they believe 17-year-old Venus Romero Iraheta (right) was the chief attacker who carried out the brutal murder of Damaris Alexandra Reyes Rivas (left)

FBI Special Agent Fernando Uribe told the court Damaris Alexandra Reyes Rivas (right) was picked up by 18-year-old Jose Castillo Rivas (left) - who is also charged in the death and had a preliminary hearing Thursday - and driven to the spot where she was killed

The lake is about two miles from the industrial park where Damaris' body was found.

The 15-year-old was forced to take her shirt and shoes off, then stand in icy water and snow so she would 'feel as much pain as Christian.'

Uribe told the court Damaris then confessed to having a sexual relationship with the missing 21-year-old, before telling her abductors to call another MS-13 member to get more information about where Christian was.

Furious, Iraheta then allegedly knocked her 15-year-old to the ground and stabbed her, before sending a final message to her victim.

'Venus told her she would never forgive her and told her she would see her in hell,' Agent Uribe told the court, according to the Post.

'She would never forget her name.'

Angelica Maria Blanco, right, and Keyri Sujey Portillo Gonzalez, left, were charged as co-conspirators in the killing of Christian Sosa Rivas - who was in a relationship with both Damaris Alexandra Reyes Rivas and Venus Romero Iraheta

This picture shows the location where Christian Rivas' body washed up - four days after investigators believe Damaris Alexandra Reyes Rivas was killed

Another person close to the case added Iraheta sliced a diamond tattoo off Damaris, which the teen had allegedly gotten to symbolize her relationship with Christian Rivas, according to the Post.

WHO ARE MS-13? The ultra-violent street gang MS-13 was the first to be designated as an international criminal group. With as many as 20,000 members in 46 states, the gang has expanded far beyond its initial roots. Members are accused of major crimes including murder, kidnapping, prostitution, drug smuggling and human trafficking. Major roundups of MS-13 members have taken place across the country since the early 2000s. In Charlotte, N.C., 53 gang members were arrested as part of Operation Fed Up, which targeted MS-13 members. In 2016, 58 members of MS-13 were rounded up as part of 'Operation Mean Streets'. Previously, two of their most notable killings include stabbing to death a federal witness in 2004 and chopping the hands off of a 16-year-old boy in 2005. Advertisement

Investigators have previously said they believe the gang members filmed Damaris' final moments.

A total of 10 people have been charged over the death, including five with murder.

Iraheta sat silently in the courtroom on Thursday as Uribe told the court all the alleged, horrible details of the murder.

Meanwhile, the victim's mother was seen wiping away tears at various points.

She did not speak to the media on Thursday, but Maria Reyes previously told the Washington Post she had moved with her daughter to the US to flee violence like what is alleged.

'I didn’t know people like that existed in the United States,' she told the newspaper in March, referring to the MS-13 gang.

'I thought it was super safe to have my daughter here with me.'

She also told NBC News4 after her daughter's body was found that the 15-year-old was a 'truly sweet' person.

The current hearing is to determine whether or not Iraheta should be tried as an adult.

Police believe the murder of Christian Rivas was the result of a power struggle, as the 21-year-old had reportedly claimed to be the leader of a local chapter.

The MS-13 was started nearly 20 years ago in Los Angeles after millions of immigrants from El Salvador came to the United States after a violent civil war left over 100,000 dead

His body washed ashore on the Potomac River near Dumfries, Virginia. Angelica Maria Blanco, 19, and Keyri Sujey Portillo Gonzalez, 18, were charged as co-conspirators in his killing.

Four more people have also been charged with murder in the case.

The ultra-violent MS-13 gang has been linked to a number of murders in recent months, with 18 arrested in the Washington area alone.

The gang has also been linked to the death of two teen girls in Long Island, New York and the execution of one teen and abduction of another in Houston, Texas.