Houston

At least two people were killed and six more injured as several tornadoes touched down in Texas and Mississippi on Saturday, damaging homes and flipping vehicles as the storm system moved east across Alabama early Sunday.

The video shows the moment the helicopter crashed into a radio tower, killing all four people aboard.

Firefighters were battling a massive pipeline fire in suburban Houston that sparked grass fires and burned power poles on Monday, forcing people in the surrounding neighborhood to evacuate as a giant plume of fire was shooting high up into the air.