Ukraine says 7 wounded in attack by armed group in western city

Armed activists of the nationalist militia Right Sector take position in the site of unrest in Mukhachevo, Western Ukraine, Saturday, July 11, 2015. At least two people were killed Saturday in a gun and grenade attack in a western Ukraine city involving the country’s notorious nationalist militia Right Sector. The violence in the city of Mukhachevo, near the Polish and Hungarian borders, broke out at a sports facility reportedly controlled by a national parliament member from a faction opposed to Right Sector. (AP Photo) (The Associated Press)

Two police cars on fire are seen at the site of unrest in Mukhachevo, Western Ukraine, Saturday, July 11, 2015. At least two people were killed Saturday in a gun and grenade attack in a western Ukraine city involving the country’s notorious nationalist militia Right Sector. The violence in the city of Mukhachevo, near the Polish and Hungarian borders, broke out at a sports facility reportedly controlled by a national parliament member from a faction opposed to Right Sector. (AP Photo) (The Associated Press)

A police car is seen on fire at the site of unrest in Mukhachevo, Western Ukraine, Saturday, July 11, 2015. At least two people were killed Saturday in a gun and grenade attack in a western Ukraine city involving the country’s notorious nationalist militia Right Sector. The violence in the city of Mukhachevo, near the Polish and Hungarian borders, broke out at a sports facility reportedly controlled by a national parliament member from a faction opposed to Right Sector. (AP Photo/str) (The Associated Press)

Ukraine's Interior Minister says four civilians and three police officers have been wounded in an attack by armed men whose weapons include grenades in a western city.

Arsen Avakov says that the armed group has been surrounded by police in the city of Mukhachevo. He says the group has seized a "civilian object," but local news websites have described it as a sports club.

The local reports say Saturday's attack has been carried out by men bearing the insignia of the far-right nationalist militia Right Sector and that the sports club, which includes a gym and a pool, is owned by a national parliament member from a faction that opposes Right Sector.

Mukhachevo is in far western Ukraine, near the border with Poland and Slovakia.