Huge blaze has destroyed a Keilor factory

A huge blaze has destroyed a factory in Melbourne’s north-west.

The 10 x 40 metre Keilor factory, thought to contain gas bottles and glue, caught fire around 4am on Wednesday.

More than 70 fire fighters attended the scene at Thor Court, the fire is now under control.

A smoke warning has been issued for the surrounding area, while Melbourne Airport has also been told it may impact flights.