Mamadou, who is from West Africa, was detained following a routine court appearance at Federal Plaza in Manhattan on August 4.
The 20-year-old Brooklyn Frontiers High School student is at least the third New York City public school student to be detained by ICE under the Trump administration's rigid immigration policies.
"I am heartbroken to share that another one of our students was detained by ICE, while attending his immigration hearing. Our Project Open Arms team is standing with the student's family, working closely to connect them with legal support and other critical services," said Dept. of Education Chancellor Melissa Avilas-Ramos.
"This is a scary and unacceptable escalation in ICE's ongoing attempts to target asylum seekers and students," Councilmember Lincoln Restler said.
The rally will be held on the steps of Tweed Courthouse on Chambers Street.
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