The NTSB says the pilot didn't report any problems or declare an emergency before Thursday's deadly San Diego plane crash.

A small plane crashed into a San Diego neighborhood early Thursday, killing multiple people believed to be passengers and destroying nearly a dozen homes and several more vehicles.

Multiple people have died after a business jet slammed into homes in a San Diego military housing community just before 4 a.m. Thursday, spilling jet fuel down the street that ignited several cars, authorities said.