MOSCOW (AP) — Russians held rallies throughout the country Sunday to protest a government plan to raise the age for receiving state pensions.

Several thousand people gathered in central Moscow for a protest organized by the Communist Party. Another Moscow protest organized by the A Just Russia party attracted about 1,500 people.

Other demonstrations were reported in at least a dozen cities throughout the country including Vladivostok in the Far East, Simferopol in Russia-annexed Crimea and Omsk, Barnaul and Novosibirsk in Siberia.

No arrests were immediately reported. The rallies had official sanction.

The plan was introduced in June and has passed first-reading in the lower house of parliament. But widespread opposition has persisted and President Vladimir Putin’s approval ratings in polls have fallen notably since the plan was announced.

In an unusual televised address to the nation, Putin last week conceded that the pension age for women will be raised only to 60 rather than the proposed 63. The current pension age for women is 55.

The plan would retain the raising of the men’s pension age from 60 to 65, implementing the steps up over five years.

The plan has attracted opposition from a notably wide specter of age groups and political beliefs. Alexei Navalny, the anti-corruption activist and Putin foe who has built his movement on relatively young and well-educated urbanites, has called for his supporters to rally nationwide next Sunday.

People who appeared to be in their 20s and 30s made up a large part of the Communist-called rally in Moscow. Younger opponents of the move fear that keeping older people in the workforce longer will shrink job opportunities for them. Older people complain they may not live long enough to collect significant benefits.

“The reform that the government offers deprives our women of a normal pension. This reform doesn’t give our youth the chance to get a good job,” Communist Party head Gennady Zyuganov said at the Moscow rally.

The Communists are demanding to have the issue put to a national referendum.