Three immigrants were stabbed in Athens on Thursday night in three separate attacks.
All three are being treated at Evangelismos Hospital. One of the victims is reported to be in a serious condition.
Police said one attack took place in the Neos Kosmos neighborhood, where an Albanian man was stabbed. Two Polish men were also stabbed in a different part of the same district.
Witnesses reportedly told police the attackers were wearing crash helmets.
Two immigrants were stabbed earlier this week on the Kifissia-Piraeus electric railway (ISAP). Both attacks have been linked to supporters of Chrysi Avgi (Golden Dawn), the neo-Nazi party that entered Parliament after collecting about 7 percent of votes at the May 6 elections.