MEMPHIS, Tenn. (AP) — The NBA postponed games in Memphis and Milwaukee on Sunday because of a massive winter storm that was creating dangerous travel conditions across much of the U.S.

The Dallas Mavericks tried twice to fly to Milwaukee for their Sunday night game against the Bucks, but conditions didn’t allow it. A decision to postpone was announced a few hours before tipoff. Food that had been prepared for the game was donated to shelters in the Milwaukee area.

Earlier Sunday, a game between the Denver Nuggets and Memphis Grizzlies was postponed about three hours before tipoff.

Reschedule dates were not announced.

The schedule changes come after dozens of games were moved around earlier in the week in anticipation of the storm.

Separately, on Saturday, the NBA postponed a game between the Warriors and Timberwolves to “prioritize the safety and security of the Minneapolis community” after the fatal shooting of a man by a federal officer in a district located less than two miles away from where the Timberwolves play.