What we know so far after Polish gunman in military clothing opens fire in Krakow

At least six people have been killed and several others injured after a gunman opened fire in central Krakow, the second largest city in Poland. Details are still emerging - here is everything we know so far. The attack began shortly before 15:00 local time (14:00 GMT) in Krakow's Main Market Square, the bustling central point of the city.

Distressing footage authenticated by BBC Verify shows the moment a police officer confronts the suspect on the ground before firing his weapon several times. City officials have urged people who live in the city and tourists to stay away from the area while an investigation continues. One of the police officers was described as being in a "very critical condition" by a Polish government minister after being shot three times while arresting the attacker.

The officer is undergoing surgery, he added. Police have confirmed the attacker was a male Polish citizen but no further details about his identity have been released. The shooting happened in one of the largest medieval squares in Europe, a busy location which is also a popular tourist destination.