(Bloomberg) -- More than 60 people who were attacked by Hamas in Israel in October, or are family members of those killed or taken hostage, sued Iran for at least $1 billion for aiding the terrorist organization. 

The lawsuit, filed Wednesday night in federal court in Washington, includes vivid details and photographs of the violence that unfolded on Oct. 7, when Hamas assaulted southern Israel from the Gaza Strip, igniting a war in the Middle East.

The 131-page complaint filed by Quinn Emanuel Urquhart & Sullivan is one of the first in what is expected to be a wave of litigation responding to the Hamas attack. A separate case brought by Judith Raanan, who was released by Hamas after two weeks in captivity, and the relatives of two murdered men, Itay Glisko and Daniel Levi Ludmir, was also filed Wednesday. 

In that case, the plaintiffs are suing Binance for allowing Hamas to trade on the crypto exchange along with Iran and Syria for allegedly providing financial support and weaponry to the group, which has been designated a terrorist organization by the US and the EU.

Top Law Firms

Since the violence broke out, lawyers from top US firms have stepped in to represent the families of Hamas hostages free of charge, largely helping them deal with the various levels of government investigating the attack. Former National Security Agency director and retired four-star general Keith Alexander pulled together more than a dozen top law firms on a conference call in October, asking what they could do to chip in. 

Attorney Ryan Fayhee, who represented the family of Hotel Rwanda hero Paul Rusesabagina, has been working with the family of 23-year-old hostage Hersh Goldberg-Polin. The US-Israeli citizen was kidnapped by Hamas from the Re’im music festival on Oct. 7, losing his arm in the violence. Fayhee declined to comment.

His colleagues, former Florida Congresswoman Ileana Ros-Lehtinen, now a senior adviser in Akin Gump Strauss Hauer & Feld’s lobbying practice, and Max Karpel have also been involved in the case, according to a person familiar with the arrangements. Former federal prosecutor Baruch Weiss, of Arnold & Porter, is also involved.

Read More: Binance Sued by Hamas Hostage, Families of Victims in Attack

The Washington suit details Iran’s history backing Hamas and Palestinian Islamic Jihad, including providing tens of millions of dollars each year along with rockets and weapons to them. In the lead-up to Oct. 7, this morphed into regular meetings between Iranian military forces, Hamas, PIJ and Hezbollah, in which Iran gave the “green light” to attack Israel, according to the complaint. 

‘Horrific Injuries’ 

The 67 plaintiffs “bring this suit for compensation from Iran for the horrific injuries — death, dismemberment, burning, hostage-taking, and other forms of torture and physical trauma — inflicted upon them by the October 7 attack,” according to the complaint.

Iran’s Ambassador to the United Nations, Amir Saeid Iravani, didn’t immediately respond to a email requesting comment.

Lawyers for the families detailed the harrowing experiences of their clients, who said terrorists stormed and torched their homes, separated them from their families and murdered their relatives at the Re’im music festival.

The relatives of Gad Haggai, an Israeli-American citizen who died in the attack, and his wife, Judy Weinstein Haggai, are among the plaintiffs. The complaint includes a screenshot of a text message Judy Haggai sent to her family on the morning of Oct. 7 that read “we’re outside. Face down in the field.” 

The families are suing Iran for providing material support for terrorism, negligence and aiding and abetting. 

Protracted Litigation

Lawsuits targeting terrorist organizations and the nation-state sponsors behind them can drag on for years, and judgments have proved nearly impossible to enforce. It took 14 years for more than 1,000 victims of the 9/11 terrorist attack to secure a judgment against Iran, which was largely viewed as symbolic as the country never responded to the claims in court.

Another 9/11 suit against Saudi Arabia has also ground on for years, with the kingdom arguing that it is immune from litigation over the attack.

But the families of the Hamas victims are willing to try. 

“Plaintiffs recognize that prosecuting this litigation to completion may be complex and take time, but they are prepared to do whatever is required to deliver justice for the atrocities Iran directed, armed, and paid for,” their lawyers wrote.

The case is Estate of Avraham Sasi v. Islamic Republic of Iran, 24-cv-00284, US District Court, District of Columbia (Washington). 

(Adds background on lawyers starting in fifth paragraph. An earlier version of this story misspelled Quinn Emanuel’s name.)

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