Are you going to be a coward?” Zül-Qarnain Nantambu asked himself before taking the field for Kendrick Lamar’s show. “Are you going to take a stand?”

NEW ORLEANS — A performer who was part of Kendrick Lamar’s Super Bowl halftime show was detained by security after waving the Sudanese flag and Palestinian flag together with the words “Sudan” and “Gaza” written on them toward the end of the performance, the NFL said.

A performer at Kendrick Lamar’s Super Bowl halftime show unfurled a flag emblazoned with the words Sudan and Gaza in a protest over the two wars that are roiling the Middle East. Security at the stadium detained the performer shortly after waving the flag atop a car used as a prop in the performance.