![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgM7gPSVSDatdfUeAiC850Gd5eyD0AyPAK7hp1ESnKS7IvLfz1YLOCO6sHXOnIFiQndUWnJHTU-vk_2_4OPC7fiNi_rM0GYwjPHzTz_bCgw5RoupjZXUzsbcTegFJ72CGm42IM0cnnpJEE/s400/cycling1-420x0.jpg)
Fatigue may have caused a truck driver to veer into the breakdown lane and mow down a group of cyclists, killing one, on the M4 in Sydney’s west.
Police said a group of four cyclists were riding in the breakdown lane of the M4 near the Northern Road overpass at South Penrith when they were struck by a B-double truck about 7.40am today.
A male cyclist died and the three others sustained serious injuries.