A man riding on a double decker bus on the Las Vegas Strip pulled a gun and started shooting, killing one person and wounding another before barricading himself inside in a standoff that lasted hours before he finally surrendered.

The standoff began about 11 a.m. Saturday on the double-decker bus when it was stopped on Las Vegas Boulevard near the Cosmopolitan hotel-casino.

"He was on the bus. He was shooting people on the bus. He was just contained to that location. He never exited the bus," Clark County Assistant Sheriff Tom Roberts said.