A 130-tonne mobile crane has collapsed at a Perth building site on Monday morning.

The incident occurred on the corner of Ruislip and Pangbourne streets in Wembley around 8.25am.

The crane was being used at a Pindan-run construction site for an aged-care facility.

A Worksafe spokeswoman confirmed no one had been injured in the collapse and that the incident would be investigated. 

More to come...