BOSTON -- Some fans seated above the Green Monster hung a sign about racism in the fourth inning and were escorted from Fenway Park during Boston's 7-3 loss to Oakland on Wednesday night. 

The sign had a black background with white letters that read: "Racism is as American as Baseball," CBS Boston reports

It was up on the left field wall for about one batter until umpires asked it be removed because it was in fair territory. There was a spattering of boos from the crowd as Red Sox security forced them to remove it and escorted the people from their seats. A Red Sox spokesman said four people were escorted from the park and one said they were inspired by Black Lives Matter. 

"Saw it was draped over the Monster," Red Sox manager John Farrell said. "From the dugout, you see someone expressing their opinion and it looked like it was withdrawn relatively quick." 

 Read more at CBSNews.com.