Emir Balat and Ibrahim Kayumi were arrested 7 March with alleged homemade devices at Gracie Mansion in New York

Two teen alleged Islamic State supporters accused of trying to detonate explosive devices during a protest outside the home of New York City’s mayor, Zohran Mamdani, freely discussed how many people they might kill, with one remarking: “I want to start terror, bro,” according to an indictment unsealed on Tuesday.

The teenagers, Emir Balat and Ibrahim Kayumi, were arrested on 7 March for allegedly igniting two improvised explosive devices during an anti-Islam protest outside Gracie Mansion. Authorities claim that Balat, 18, lit one device and threw it in the direction of the protesters.

Kayumi, 19, then gave Balat another device, court papers stated. Balat allegedly dropped this second device near several police officers and tried to flee; he and Kayumi were arrested shortly thereafter.

The eight-count indictment includes charges such as conspiracy to provide material support and resources to a foreign terrorist organization, provision and attempted provision of material support and resources to a designated foreign terrorist organization, and conspiracy to use a weapon of mass destruction.