On Tuesday, former Philippine President Rodrigo Duterte was arrested by local authorities at Manila’s international airport after the International Criminal Court issued a warrant accusing him of crimes against humanity. News of his arrest prompted some observers to urge the arrest of another public figure who faces ICC charges: Israeli Prime Minister Benjamin Netanyahu.

The Duterte case will pose a test for the court, according to The New York Times. In the past six months, the ICC has issued arrest warrants for Netanyahu, former Israeli Defense Minister Yoav Gallant, and Min Aung Hlaing, the head of the military junta in Myanmar.

Trita Parsi, executive vice president of the Quincy Institute for Responsible Statecraft, wrote “Perhaps Netanyahu and Gallant will be next…” in response to the news. Danny Shaw, a professor at City University of New York, posted a video of Duterte’s arrest and wrote: “Why don’t they arrest Netanyahu?”

Wim Zwijnenburg, a project leader at the Dutch peace organization PAX, wrote, “now do Netanyahu.”

On Tuesday night, Duterte was placed on a plane that was bound for The Hague, where the court is headquartered, per the Times, citing two people with knowledge of the matter.

The ICC has accused Duterte of crimes against humanity during his time as president and when he was the mayor of the city of Davao. During his tenure as president, from 2016 to 2022, Duterte’s security forces carried out thousands of killings that his government cast as drug-related cases. In a 2017 report, Human Rights Watch described his “war on drugs” as effectively “a campaign of extrajudicial execution in impoverished areas of Manila and other urban areas.” Philippine National Police officers and unidentified “vigilantes” killed over 7,000 people between the start of his term and the release of that Human Rights Watch report, according to the group.

In 2017, Duterte earned praise from U.S. President Donald Trump, who told him in a phone call that he was doing “an unbelievable job on the drug problem,” according to reporting at the time.

“Duterte’s arrest on an ICC warrant is a hopeful sign for victims in the Philippines and beyond. It shows that suspected perpetrators of the worst crimes, including government leaders, can and will face justice, wherever they are in the world,” said Agnes Callamard, secretary general of the human rights group Amnesty International, in a statement Tuesday. “At a time when too many governments renege on their ICC obligations while others attack or sanction international courts, Duterte’s arrest is a huge moment for the power of international law.”

Duterte’s former chief legal counsel and presidential spokesperson, Salvador Panelo, said that the “ICC has no jurisdiction in the Philippines,” in part because “the country withdrew as an ICC member state in 2018,” according to a post on social media.

According to the Times, the court says the case only considers alleged crimes from the time when the country was still part of the court.

According to a copy of he warrant, which was obtained by the Times, three judges of the ICC said they believed Duterte “was responsible for the drug war killings that took place when he was president and mayor of Davao, and that there were reasonable grounds to believe that these attacks were ‘both widespread and systematic.'”

The government itself, in 2022, said that over 6,200 “drug suspects” were killed during Duterte’s war on drugs starting in 2016. Rights groups put the total number of people who died much higher, in the tens of thousands, according to PBS.