NEWARK, United States: Mahmoud Khalil, one of the most prominent leaders of US pro-Palestinian campus protests, pledged Saturday to keep campaigning after he was released from a federal detention center.

“Even if they would kill me, I would still speak for Palestine,” Khalil said as he was greeted by cheering supporters at Newark airport, just outside New York City.

Khalil, a legal permanent resident in the United States who is married to a US citizen and has a US-born son, had been in custody since March facing potential deportation.

He was freed from a federal immigration detention center in Louisiana on Friday, hours after a judge ordered his release on bail.

The Columbia University graduate was a figurehead of student protests against US ally Israel’s war in Gaza, and the Trump administration labeled him a national security threat.