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Berlin: A homeless woman gave birth outdoors in temperatures well below freezing early Friday in the Bavarian city of Nuremberg, authorities said.

A police patrol spotted the 20-year-old woman, a companion and the newborn infant shortly after the birth at about 5am on a ventilation grate outside a subway station, the dpa news agency reported.

The woman and her baby were huddled in a sleeping bag trying to keep warm in minus 15 Celsius (5 degrees Fahrenheit) temperatures.

Both were taken by authorities to a hospital to warm up and for observation.

Further details on the incident were not immediately available.