Woman injures 6 in stabbing attack on bus in Germany
The incident comes one week after three people were killed in a knife attack in the German city of Solingen

At least six people have been injured, three of them critically, in a stabbing on board a bus in the western German city of Siegen, police said on Friday evening.
A 32-year-old female suspect has been arrested, police said.
Another person suffered serious injuries, it said.
At least 40 people were on the bus travelling to a city festival in Siegen, located some 75km (45 miles) east of Cologne, when the attack occurred at around 7.40pm, according to the police statement.
Several passengers alerted the police and officers arrested the suspect, a German national.
The motive of the crime remained initially unclear. Police said there was no indication of a terrorist attack.