A teenager has been stabbed to death at a busy Melbourne shopping centre, with police now searching for his killer. 

Emergency services were called to Woodgrove Shopping Centre, in Melton West, just before midday on Tuesday to reports a boy had been stabbed. 

Paramedics performed CPR, but despite their best efforts, he died at the scene.

‘It’s believed there may have been an altercation between the victim and another male,’ Victoria Police said.

‘The exact circumstances surrounding the teenager’s death are yet to be determined and no arrests have been made at this stage.’

The incident comes just days after a local issued a warning to shoppers about possible ‘gang’ issues at the shopping centre.

An entrance to the food court was closed in the wake of the tragedy 

‘I’ve heard possible issues with gang problems this weekend at Woodgrove,’ the woman wrote on Facebook on Saturday.

‘Hopefullly not true… Be aware of your surroundings.’ 

A woman who works in a shop within the centre told Daily Mail Australia she heard a group of young people ‘yelling and screaming’ as the attack unfolded.

Witness  Steve told 3AW the centre was bustling with shoppers at the time of the attack.

‘There has to be 25 police cars and choppers in the sky,’ he said. 

‘The food court where it happened is open and there’s people oblivious to it.’

Police tape was erected inside the building as officers worked the scene 

Pictured: The major police operation at the centre on Tuesday 

The woman said she was shocked that authorities did not close the plaza in the wake of the incident.

‘All they did was close one entrance. That was it.’ 

A police helicopter has been deployed in the area as detectives search for the knifeman. 

The incident comes after the shopping centre was locked down earlier this year after a fight broke out between two groups of youths armed with machetes and a butcher’s knife.

Anyone with information is urged to contact Crime Stoppers on 1800 333 000.