Three Belgian police officers have been injured in a terror-related stabbing frenzy.

So far, few details are available.

But officials say the investigation has been transferred to federal officials -- who only probe major crime and terror.

Federal prosecution spokesman Eric Van Der Sypt told ABC News, "we have reason to believe that it is terror-related."

Belgian TV network VRT reported one cop was stabbed in the neck and another in the stomach. The crazed attacker then broke the nose of a third police officer who had rushed to the scene.

One witness told VRT he saw the perpetrator from an office.

"A man came already hobbling running up. Afterwards he appeared shot in the leg by the police. He was then transported by ambulance after they had splinted his leg. It was a fairly stocky man wearing a sweater with hood," the witness said.

The cops’ wounds were not life-threatening.

The Daily Mirror reported that an earlier bomb threat at a Brussels train station was a false alarm.

The small country has been on high alert ever since 32 civilians were massacred in a wave of suicide bombing attacks in Brussels last March.