LONDON — U.K. counter-terror police have arrested 11 men amid an investigation into the far-right group National Action.

They range in age from 22 to 35 and come from various locations in England and Wales. They are suspected of offenses ranging from preparation of a terrorist act to funding terrorism.

Deputy Assistant Commissioner Neil Basu of the Metropolitan Police said Wednesday that the authorities are committed to tackling all forms of extremism.

Basu said that “investigations relating to alleged extreme right-wing activity are pursued with the same level of resource and vigor as other ideologies, in order to bring suspected offenders before the courts.”

The government has described National Action as “virulently racist, anti-Semitic and homophobic.”

The group last year praised Thomas Mair, a far-right extremist who murdered Labour Party lawmaker Jo Cox.