In Luke 24, how did the apostles first react to the women's report of the empty tomb?

Answer: They thought it was nonsense

The women's words seemed like nonsense to the apostles, and they did not believe them.

“And when they returned from the tomb, they reported all these things to the Eleven and to all the others. It was Mary Magdalene, Joanna, Mary the mother of James, and the other women with them who told this to the apostles. But their words seemed like nonsense to them, and they did not believe the women.”— Luke 24:9-11 (BSB)