The circumstances were eerily similar to the crash of a Lion Air flight off Indonesia in October that killed 189. Early information on Sunday’s crash is incomplete and does not rule out pilot error or a different malfunction.

Background: The 737 Max 8 is an update to a model that is a linchpin for airlines around the world, particularly in China. After the crash in Indonesia, some American aviation officials said that a software update for the Max’s flight control system wasn’t adequately explained to pilots. Many airlines have since provided training, but whether Ethiopian Airlines did so was not immediately known.The passengers: The flight, which was bound for Nairobi, Kenya, had been nicknamed the “U.N. shuttle” because of how often United Nations staff members took it. At least 22 employees of U.N.-affiliated agencies were among those killed.

Basic questions: In the U.S., American Airlines, Southwest Airlines and United Airlines all use the 737 Max. Here are some answers to common questions.

President Trump to renew fight over wall funding

After a spending dispute that closed parts of the government for a record 35 days, the president plans to ask for $8.6 billion for a wall on the southwestern border in the budget that he submits to Congress today, aides said.