Four people, including a nine-year-old child, are killed after two boats collide off the Greek island of Aegina.

At least four people, including a nine-year-old child, have died after a speedboat and a tourist vessel collided off the island of Aegina, according to Greece's coastguard.

The bodies of three men and the child were recovered from the water, officials say.

Four Killed In Boat Crash Off Greek Island

Image courtesy: Greek Inews

One of the men killed in the collision is believed to have been the captain of the tourist boat.

Four other people were injured in the crash, according to authorities.

Image courtesy: Greek Inews

The nationalities of the victims have not yet been released to the public.

At least 21 people, including the injured, have been rescued by coastguard vessels and private boats. A helicopter was also involved in the rescue efforts.

It is thought around 20 people were on the tourist boat, but it is unclear how many people were aboard the speedboat, officials said.

One witness told Greece's Mega broadcaster: "We saw over eight or nine people in the sea ... some were swimming, others were unconscious, dead."

Another witness said the motorboat was sliced in two.

Image courtesy: Greek Inews

Aegina's proximity to Athens makes it a popular holiday island for Greeks and foreign tourists.

The tourist vessel had been transporting people from Aegina to a beach on the nearby deserted island of Moni, a common trip that runs daily.

Referring to the area between the two locations, Aegina mayor Dimitris Mourtzis said: "It's such a small canal, just a few minutes' distance."
Details of how the accident occurred are remain unclear, according to authorities.

The weather in the area was reported to be good.

Source: Sky News