Explosion near German migrant centre, no sign of attack: police

A suitcase exploded outside a migrant reception centre in southern Germany Wednesday, police said, adding there was "no indication" there was a bomb inside. No one was hurt.

The blast occurred about 200 metres (yards) from the centre in the Bavarian town of Zirndorf, where police were on the scene.

"There is no indication at the moment that a bomb was detonated in the suitcase," police said in a statement.

"It is possible it was a spray can inside the suitcase that caused the explosion. No one was reported injured."

The incident occurred in Bavaria, where authorities are on edge after three attacks in a one-week period.

On Sunday, a Syrian asylum seeker with suspected links to the Islamic State group blew himself up near a music festival in Ansbach, wounding 15 people.

Nine people were killed in a shopping centre shooting spree in Munich on Friday, just six days after four passengers on a train and a passer-by were wounded in an axe attack in Wuerzburg.

Bavaria has been a gateway for the influx of migrants and refugees to Germany, which saw a record 1.1 million people arrive last year.