At least one person died in the collision of a refugee boat with a Greek coast guard ship off the coast of Kos. Six other refugees were injured, the Coast Guard said. A man and a three-year-old child would still be missing.

The injured, including a pregnant woman, were taken to the hospital, it said. According to the Coast Guard, the boat with 34 migrants was without light.

In recent weeks, the number of refugees fleeing from Turkey to neighboring Greece has risen again. In view of the increasing numbers, the government in Athens ordered the Coast Guard to intensify surveillance of the coast.

More than 70,000 refugees live in Greece, almost 33,000 of them in refugee camps on the Aegean islands, which are often overcrowded. Much of them are from Syria and Afghanistan.

Refugees in the Mediterranean - the dying continues Refugee boats are sinking again and again in the Mediterranean Sea. What moves "Lifeline" captain Claus-Peter Reisch to save people from the sea? A contribution from the video archive © Photo: Aris Messinis / AFP / Getty

According to the International Organization for Migration, nearly two thirds of verified deaths of migrants in the Mediterranean are on the route from North Africa to Italy. Since early 2014, at least 15,000 people have been fleeing the Mediterranean.