CNN
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Residents in the German city of Hamburg have been warned of heavy smoke and possible toxins in the air after a major fire broke out at a warehouse.
Video circulating on social media shows the warehouse engulfed in flames early Sunday morning, with smoke billowing into the sky.
“Smoke gases and chemical components in the air caused by a warehouse fire can affect breathing. The cloud of smoke is moving towards the city center!” an alert from the Hamburg fire department said.
Some 140 people have been evacuated, a police spokesperson said, according to Reuters.
![Police officers stand at the Hamburg-Rothenburgsort train station while flames from a large fire can be seen in the background.](https://media.cnn.com/api/v1/images/stellar/prod/230409055934-03-hamburg-fire-040923.jpg?c=16x9&q=h_720,w_1280,c_fill)
According to local news outlet NDR, local residents have been instructed to close their windows and doors.
“The inner city of Hamburg has gone completely dark,” a fire department spokesperson said, as quoted by the outlet.
It is not clear yet what caused the fire.