Croatia remembers the victims of the 9/11 attacks, extending its condolences to the families and expressing solidarity with the United States and the American people, Prime Minister Andrej Plenkovic wrote on Twitter on Saturday.

“The evil of terrorism is a global threat that we can eradicate through joint action and cooperation,” Plenkovic said on the 20th anniversary of the attacks.

Three thousand people were killed in attacks by the Al-Qaeda terrorist group on 11 September 2001 after terrorists hijacked three aircraft and deliberately crashed them into the twin towers of the World Trade Center in New York and into the Pentagon. A fourth hijacked plane crashed into a field in Pennsylvania after passengers attempted to regain control of the aircraft from the hijackers.

The 20th anniversary falls less than two weeks after the US withdrawal from Afghanistan, the longest US war in history, launched in retaliation against the al-Qaeda conspirators and leaders and the Taliban who gave them refuge.