Protesters arrested after delaying US Open match

Two protesters have been arrested after play at the U.S. Open was interrupted on Thursday night when they began shouting and one glued his feet to the ground during a match at Arthur Ashe Stadium in New York.

Sayak Mukhopadhyay, 50, of White Plains, was charged with criminal trespass and disorderly conduct after gluing his feet to the concrete floor in the stands. Gregory Schwedock, 35, of Manhattan, who was also escorted out, was charged with criminal trespass.

Both were given tickets to appear in court at a later date.

Two other protesters were given trespassing notices by the U.S. Open, which effectively puts them on notice that they are no longer permitted on the grounds.

The delay of the match between Coco Gauff and Karolina Muchova began at 8:05 p.m. ET when protesters appeared to be shouting about climate change. They were wearing shirts that read "End Fossil Fuels."

"Following the first game of the second set in the Gauff-Muchova match, play was halted due to a protest conducted by four spectators," the U.S. Tennis Association said in a statement Thursday night.

"Three of the four protesters were escorted out of the stadium without further incident. The fourth protester affixed their bare feet to the floor of the seating bowl. Due to the nature of this action, NYPD and medical personnel were needed in order to safely remove this individual from the stadium," the statement continued.

The NYPD took four protesters into custody, according to the USTA.

Play resumed after the 49-minute incident. Gauff would eventually win the match in two sets to advance to her first U.S. Open final.

Earlier this week, a spectator was ejected from a tennis match at the tournament after German player Alexander Zverev accused the man of quoting a phrase from Adolf Hitler's Nazi regime.

"He said the most famous Hitler phrase to me," Zverev told the umpire. "He just said the most famous Hitler phrase there is in this world. It's unacceptable. This is unbelievable."

The umpire immediately turned around to interrogate the crowd and ask the fan to identify himself.

"Put your hand up," chair umpire James Keothavong said. "Who said that? Who said that? Who said that? We are going to get him out."

Soon after, security officials were called in to remove the fan, who was apparently identified by spectators seated near him. The crowd cheered as the man was escorted out of the arena by security.

ABC News' Morgan Winsor, Joshua Hoyoes and Darren Reynolds contributed to this story.