Four people were reportedly escorted out of the Baltimore Orioles’ Camden Yards ballpark on Thursday night after they unfurled a pro-President Donald Trump banner in the stands.

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The banner, which the unidentified quartet unveiled in the eighth innings of the Orioles’ MLB game against the Toronto Blue Jays, read “Keep America Great!” and “Trump 2020.”

The incident came amid Trump’s ongoing attacks on Rep. Elijah Cummings (D-Md.) and the city of Baltimore, which the president has disparagingly described as a “rodent infested mess.” Some sections of the crowd chanted “take it down,” tweeted Jon Meoli, a reporter for The Baltimore Sun:

Other people booed, tweeted baseball columnist Shi Davidi:

According to the Orioles website, “banners are subject to confiscation if the content is commercial, political, and/or in bad taste according to the Orioles’ discretion.”

The banner remained in place for less than 10 minutes, reported the Associated Press news agency, when police officers and stadium officials ordered the group to take it down.