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between the Conservatives, the Social Democrats and the Neos.

And they have made fighting illegal immigration a big pillar of their programme.

And some critics say they are actually trying to go ahead with this, which will fuel anti-Muslim sentiment.

Our Vienna correspondent, Bethany Bell, talking to James Menendez.

Cameras attached to killer whales have captured extraordinary footage of what scientists say is cooperative hunting, the whales swimming and foraging with dolphins and catching fish together.

The scientists say their findings, published in the journal Nature Scientific Reports, are some of the first recorded evidence of the two species working together.

Victoria Gill is the BBC science correspondent.

She's been finding out about a salmon hunt that took marine scientists by surprise.

Large groups of killer whales and Pacific white-sided dolphins are often seen in close proximity off the coast of British Columbia in Canada.

But when scientists there used drones and camera tags to understand what the animals were doing together, they found something surprising.

Researchers saw whales and dolphins synchronising their movements while they were foraging.

That's lead researcher Dr. Sarah Fortune from Dalhousie University in Nova Scotia in Canada.

To work out what was happening beneath the surface, she and her colleagues used devices with inbuilt cameras and other sensors that physically attached to the orcas' bodies with a suction cup.

This is some of the sound that those tags recorded and it was key to this study because both orcas and dolphins use sound to hunt.

They produce clicks that they use to find their way around, picking up echoes from objects in their environment, including the prey they're hunting.

And Dr Fortune said the sound recordings suggested that the two species might be listening to each other.

The researchers also saw evidence of the animals sharing food.

Killer whales brought salmon they caught to the surface and broke it apart.

And since they're not the cleanest of eaters, Dr Fortune says this meant there were plenty of leftovers for the dolphins.

The researchers think this association could be about more than food though.