A CANADIAN porn actor suspected of the dismemberment of a Chinese student has arrived in Canada by military transport plane from Germany, where he was arrested this month.

Luka Magnotta, 29, did not fight his extradition. He is suspected of killing Jun Lin and sending body parts to Canadian political parties and schools.

The head is still missing. The police said they would ask Magnotta where it is.

Investigators say Magnotta posted a video online showing him having sex with the dismembered corpse.

Montreal police commander Ian Lafreniere said Magnotta's plane landed at Mirabel airport just outside Montreal.

A convoy of police vehicles with flashing lights rolled out to meet the suspect. Half a dozen men escorted him down the stairs of the plane and into a minivan.

A handcuffed Magnotta said nothing as he was escorted into the van.

"This is not the end of the investigation," Lafreniere said.

"We're missing an important part of the investigation - the head of the body."