The Brandenburg Gate in Berlin is illuminated in the colors of the German flag on Tuesday, December 20, one day after <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2016%2F12%2F19%2Feurope%2Fgallery%2Fberlin-market-attack%2Findex.html" target="_blank">a truck crashed into a crowded Christmas market</a> there. At least 12 people were killed and 48 injured in what police are investigating as a terrorist attack.
The Brandenburg Gate in Berlin is illuminated in the colors of the German flag on Tuesday, December 20, one day after a truck crashed into a crowded Christmas market there. At least 12 people were killed and 48 injured in what police are investigating as a terrorist attack.
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A police officer places a candle at a makeshift memorial in Berlin on December 20.
A police officer places a candle at a makeshift memorial in Berlin on December 20.
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A woman is illuminated by candles as she cries in Berlin on December 20.
A woman is illuminated by candles as she cries in Berlin on December 20.
Markus Schreiber/AP
A man prays at a Berlin memorial on December 20.
A man prays at a Berlin memorial on December 20.
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German Chancellor Angela Merkel lays flowers at the memorial on December 20. She is joined by, from left, Berlin Mayor Michael Muller, Minister of the Interior Thomas de Maiziere and Foreign Minister Frank-Walter Steinmeier.
German Chancellor Angela Merkel lays flowers at the memorial on December 20. She is joined by, from left, Berlin Mayor Michael Muller, Minister of the Interior Thomas de Maiziere and Foreign Minister Frank-Walter Steinmeier.
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Merkel, bottom left, views the scene of the attack.
Merkel, bottom left, views the scene of the attack.
Markus Schreiber/AP
A woman reacts near the crime scene on December 20.
A woman reacts near the crime scene on December 20.
Matthias Schrader/AP
Mourners gather at the Kaiser Wilhelm Memorial Church near the crash site.
Mourners gather at the Kaiser Wilhelm Memorial Church near the crash site.
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A police officer holds her weapon near the market.
A police officer holds her weapon near the market.
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A woman lays flowers at a makeshift memorial across from the market.
A woman lays flowers at a makeshift memorial across from the market.
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A stall worker is comforted in the market area on December 20.
A stall worker is comforted in the market area on December 20.
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People attend a memorial service at St. Hedwig Cathedral in Berlin on December 20.
People attend a memorial service at St. Hedwig Cathedral in Berlin on December 20.
Michael Sohn/AP
A police van drives by Christmas decorations at a Christmas market in Frankfurt, Germany, on December 20. Police presence has been stepped up at Christmas markets across Germany following the attack in Berlin.
A police van drives by Christmas decorations at a Christmas market in Frankfurt, Germany, on December 20. Police presence has been stepped up at Christmas markets across Germany following the attack in Berlin.
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