Security had to lock down the Barclays Center at one point, which prevented some fans from entering, but the game against the Charlotte Hornets began on time at 4:00 p.m. ET (2000 GMT).
“Barclays Center briefly closed its doors today in order to clear protestors from the main doors on the plaza and ensure guests could safely enter the arena,” a spokesperson for the arena said in a statement provided to Reuters.
“Only ticketed guests were able to enter the building and the game proceeded according to schedule.”
The NBA does not require players to be vaccinated but Irving is not eligible to play in home games because of coronavirus regulations in New York.
The Nets announced ahead of the current season that Irving, a seven-times All-Star who joined Brooklyn in 2019 after stints with Cleveland and Boston, would not play or practice with the team until he is eligible to be a full participant.
“Kyrie has made a personal choice, and we respect his individual right to choose,” the Nets said at the time.
“Currently the choice restricts his ability to be a full-time member of the team, and we will not permit any member of our team to participate with part-time availability.”