Backgrounder: Recent major attacks in Germany

A string of bloody attacks have rocked Germany of late, setting the nerves of its public on edge and raising concerns about safety and refugee issues.

The following is a summary of the attacks in Germany over recent months.

On Dec. 31, 2015, a group of some 1,000 men surrounded, harassed and robbed mostly women in the western German city of Cologne. According to eyewitnesses and victims, the perpetrators were from Arabic or North African regions.

On May 10, 2016, a man stabbed four people at a train station in a random early-morning attack in Grafing near Munich. One man later died.

On June 23, a masked gunman stormed a cinema in western Germany and took some people hostage. He was shot dead by police. No one was injured.

On July 18, a 17-year-old asylum-seeker from Afghanistan assaulted passengers with axe and knife on a regional train near Wuerzburg in the southern German state of Bavaria, severely wounding five. The attacker was shot dead by police.

On July 22, an 18-year-old with dual German-Iranian nationality killed 10, including himself, and wounded 27 others at a shopping center in Munich.

On July 24, one person was killed and 12 others were injured in an explosion in the southern German city of Ansbach. The dead was believed to be the attacker.

On the same day, a man killed a woman and injured two others with a machete in the southwestern German town of Reutlingen. Authorities identified the attacker as a 21-year-old asylum seeker from Syria. Endi