Staff of the Federal Emergency Management Agency were left baffled on Monday after the head of the U.S. disaster agency said he had not been aware the country has a hurricane season, according to four sources familiar with the situation.

In a meeting with FEMA staff, David Richardson said he was unaware the United States had a hurricane season. Two staff members said it was unclear if he was serious, but the agency said he was joking.

The nation’s top agency for response and recovery work has endured significant upheaval since Trump’s return to the White House, and now Atlantic hurricane season is underway.