When Jesus died, the veil of the temple was torn in two from top to bottom. The earth quaked, and the rocks were split. The graves were opened. Many of the saints bodies were raised. And coming out of the graves after His resurrection, they went into Jerusalem and appeared to many (Acts 1).
Jesus was buried and descended to the underworld.
He preached and proclaimed to the fallen angels in prison (Tartarus). He disarmed principalities and powers. He made a public spectacle of them. He triumphed over them in His victory on the cross (1 Peter 3:19, Colossians 2:15).