The German interior ministry has confirmed that at least three people were killed and many others were injured in a shooting at a shopping mall in Munich.
Police are searching for the attackers in a massive manhunt across the German city and have asked people to stay indoors, according to German media reports.
The Munich police said on Twitter that reports on social media of a second shooting in another part of the city were a false alarm.
A number of highways to the north of Munich have been sealed off and police have asked people to leave the highways clear. German border patrol helicopters are on their way to Munich, according to Bavarian broadcaster BR.
Police have confirmed that the McDonald's fast-food restaurant in the Olympia shopping center was attacked by three shooters.
All trains and public transport within and leading into and out of the city have been diverted and the city has been closed to traffic.
It is the second attack in Bavaria in less than a week. Security forces have been on high alert after a teenage refugee attacked train passengers near the city of Wurzburg with an axe and a knife, leaving two people with severe injuries.
The Islamic State group claimed responsibility for the train attack, but authorities have said the teenager likely acted alone.