(KRON) – A fatal motorcycle collision led to the closure of four lanes of traffic on eastbound Interstate 580 at Grove Way near Castro Valley during the Wednesday rush hour.

A motorcycle and a dump truck collided before 7:22 a.m. this morning. The motorcyclist is dead and an investigation is underway. Lanes 2, 3, 4, and 5 were blocked as of 8:24 a.m., but all lanes are open as of shortly after 9 a.m.

This is a developing story. Check back for updates.