A specialist in psychiatric care for migrants has said that there is no known link between trauma and radicalization, after an adolescent refugee attacked train passengers with an axe.

Traumatized refugees are not at particular risk of carrying out acts of violence, Kneginja Richter from Nuremberg Hospital said.

"It would be too much of a generalization to make this connection. This has never been studied and it would therefore be wrong to claim it exists," she said.

Richter added that there is also no great risk of traumatized refugees coming under the influence of terror group Isis.

Read the complete original version of this item...