Rogue roo causes major delays in Melbourne

A large grey kangaroo that caused major delays on an inner Melbourne train line has been captured.

The roo was spotted along rail lines near Brunswick on Monday morning causing major delays on the Upfield line.

Wildlife Victoria rangers tracked the animal's movements for several days throughout Melbourne's northern suburbs.

They successfully found and sedated it before midday and took it to Melbourne Zoo for assessment, a Wildlife Victoria spokesperson told AAP.