Many of the protesters said they were offended by President Trump's remarks earlier in the day in San Juan, where he had flown for a visit amid mounting criticism of the slow pace of federal-led recovery efforts.
President Trump told officials at the Muniz Air National Guard base that they should be "proud" that only 16 people died as a result of Hurricane Maria, compared to the scores killed "in a real catastrophe" like Hurricane Katrina. Shortly after his comments, the death toll on Puerto Rico was revised to 34.
Later, Trump appeared at a church outside San Juan, where he handed out packages of rice and lobbed paper towel rolls into the crowd.