WASHINGTON - The Supreme Court said on Monday it will hear two lawsuits filed by relatives of victims of terror attacks in France and Turkey against Google, Twitter and Facebook seeking to hold the social media companies financially responsible for terrorist attacks.

They alleged that these companies help terrorists spread their message to terrorist organizations and radicalize new recruits.

The court will hear the cases this term, which began Monday, with a decision expected before the court recesses for the summer, usually in late June.

The court did not say when it would hear arguments, but the court has already filled its argument calendar for October and November.

One of the cases the justices will hear involves Nohemi Gonzalez, a 23-year-old U.S. citizen studying in Paris. The Cal State Long Beach student was one of 130 people killed in Islamic State group attacks in November 2015. The attackers struck cafes, outside the French national stadium and inside the Bataclan theatre. Gonzalez died in an attack at La Belle Equipe bistro.

Gonzalez's relatives sued Google, which owns YouTube, alleging the platform aided terrorist organizations by allowing them to post hundreds of videos inciting violence and recruiting potential supporters. Gonzalez's relatives said the company's computer algorithm recommended those videos to viewers who were interested in them.

But a judge dismissed the case and a federal appeals court upheld the ruling. Under U.S. law — specifically Section 230 of the Communications Decency Act — internet companies are generally exempt from liability for the material users post on their networks.

Another case the court has agreed to hear involves Jordanian citizen Nawrez Alsaf. He died in a 2017 attack on Istanbul's Reina nightclub in which a gunman linked to terrorist organizations killed 39 people.

Alassaf's relatives sued Twitter, Google and Facebook for aiding and abetting terrorism, arguing that the platforms helped terrorist organizations grow and did not do enough to prevent terrorist activities on their platforms. The lower court allowed the case to proceed.