Police are investigating possible crimes that occurred during the extremist Blue-and-Black movement's May Day march in Tampere, south-central Finland.
The police are examining videos filmed during the 'White May Day' procession to identify possible suspects, Chief Inspector Ari Aro of the Central Finland Police Department told Yle on Saturday. However, identification may be difficult because many of the marchers covered their faces.
A video filmed by Yle on Friday shows several participants from the far-right march violently attacking a counter-protester.
Counter-protester Tytti Hynninen told Yle that she and a friend were assaulted while holding an anti-Nazi banner alongside the Blue-and-Black procession.
She suffered injuries to her face, which she said was struck with fists and a knee.
Police are investigating the attack as assault.
According to Aro, police are examining videos and other evidence. Authorities were not notified of the incident at the time on Friday.
Police are also looking into reports that far-right marchers carried flaming torches, that they use to set fire to counter-protesters' banners. Some of the right-wing demonstrators brought children along as part of the 'White May Day' procession.
The openly racist and fascist Blue-Black Movement was allowed to rejoin Finland's political party register last year. The movement was established partly by former members of the Finns Party, which is now led by Finance Minister Riikka Purra.
2 May, 4:06pm: Added reports of torches and child participants.
3 May, 2:53pm: Corrected last sentence to say that the BBM was established by former Finns Party members.
3 May, 6:02pm: Clarified that the Blue-Black Movement's founders included former Finns Party members, added "partly by", and specified that Riikka Purra is the current leader of the Finns Party, added "now led by Purra".
