Cologne, Germany: German police said on Monday they were not eliminating terrorism as the motive for a hostage-taking at Cologne central station that left several people injured.
"The investigation is considering all possibilities and we are not ruling out terrorism," said Cologne deputy police chief Miriam Brauns at a news conference.
The suspect, who was badly wounded when police stormed the scene, had claimed to be a member of Daesh, another police spokesman said.
He had first hurled a Molotov cocktail inside a McDonalds restaurant, injuring a teenage girl, then taken another woman hostage in an adjacent pharmacy.
He was holding a real or replica pistol when commandos stormed the site, said police, adding that the man was also in possession of camping gas containers.
Police said they could not yet positively identify the hostage-taker, who was undergoing surgery, but believed he was a 55-year-old Syrian immigrant.
Syrian identity documents had been found in the pharmacy, they said.
Earlier, the police ended a hostage-taking in a pharmacy in Cologne's main train station, which saw the alleged perpetrator gravely wounded along with two of his victims.
"Special response units overpowered the man. During the police action he hurt two bystanders, one of them seriously," police said in a statement.
The attacker had to be resuscitated and was in intensive care for "extremely serious" injuries sustained when officers stormed the shop, they added.
"The motive of the attacker remains unclear," a spokesman said soon after he was subdued.
A woman held hostage by the perpetrator was only "lightly wounded", police tweeted shortly after she was freed around 3pm (1300 GMT).
But another victim, a 14-year-old girl, was brought to hospital suffering from burns.
Eyewitnesses said the teenager had been in a cafe close to the pharmacy immediately before the hostage-taking.
Police set up a webpage where members of the public could upload pictures and video related to the incident, while their own investigations were "at full pitch".
They began receiving calls about the violence around lunchtime.
#PolizeiNRW #Köln #Leverkusen : Nach der der Geiselnahme am HBF Köln laufen die Ermittlungen der Kriminalpolizei auf Hochtouren. Zeugen werden gebeten, unter https://t.co/i6Gp8VWBY7 Fotos und Videos hochzuladen, die in möglichem Zusammenhang mit dem Tatgeschehen stehen könnten.— Polizei NRW K (@polizei_nrw_k) October 15, 2018
An eyewitness told journalists how she heard screams and saw "a girl running for her life" from the cafe with flames spreading up her leg, before she was helped by bystanders.
First responders arrived around 12.45 pm at the central station directly next to Cologne's twin-spired cathedral, locking the whole building down.
As members of the public were ordered to leave the area as quickly as possible, state rail operator Deutsche Bahn shut down the busy main train station in Cologne - a major hub for rail travel through North Rhine-Westphalia state and nationwide.
Aktuelle Info zur beendeten #Geiselnahme in #Köln: Unsere Ermittlungen dauern weiter an. Die weiträumigen Absperrungen um den Tatort sind weiterhin notwendig. Weitere Informationen teilen die Staatsanwaltschaft und die Polizei Köln heute um 19:00 Uhr in einer Pressekonferenz mit.— Polizei NRW K (@polizei_nrw_k) October 15, 2018
Officers initially said they were in contact with the hostage-taker to determine his demands and whether he was armed.
But shortly afterwards police commandos stormed the pharmacy with stun grenades.
"The perpetrator is under control. Police measures are continuing," Cologne police wrote on Twitter just after the special unit assaulted the shop.