President Donald Trump spent his weekend tweeting about sports while U.S. citizens in Puerto Rico continued to deal with apocalyptic conditions in the aftermath of Hurricane Maria.

Trump kicked off his sports tweets Saturday by saying he wouldnt allow the NBAs Golden State Warriors to visit the White House after player Stephen Curry said he didnt want to go .

That afternoon, Trump started a tirade against athletes kneeling or sitting during the national anthem, a protest started last year by former San Francisco 49ers quarterback Colin Kaepernick, who refused to stand during the anthem to protest oppression and police brutality against black people.

Trump tweeted about sports 17 times between Saturday and Monday morning. He didnt tweet once about Puerto Rico, where citizens have been largely without power, water or means of communication since Maria hit Wednesday as a Category 5 hurricane.

Ricardo Rossell, the governor of Puerto Rico, has called for a greater federal response to the disaster, which left at least 13 people dead. Polls show many mainland residents dont realize that Puerto Ricans are Americans . In fact, 3.5 million U.S. citizens live there.

Supplies were running low in many areas of Puerto Rico Monday, and outside assistance was complicated by damaged airports and harbors, according to The Washington Post . After suffering damage in the storm, the Guajataca Dam threatened to burst, putting more lives in danger, causing more devastation and complicating rescue and recovery efforts.