Wildfire sparks small fire inside Los Alamos nuclear lab

A wildfire in the southwest US is threatening a huge government nuclear laboratory in New Mexico.

The wildfire has forced residents of Los Alamos to leave their homes, and sparked a small fire inside the nuclear facility.

The site contains the largest nuclear weapons arsenal in the US, but officials say all radioactive materials are safe and there has been no contamination.

Alastair Leithead reports.