Scuffles have broken out during a small demonstration against the radical leftist Podemos (We Can) party in Madrid six days after local elections boosted its power base in several of Spain's regions.

Around 200 protesters gathered in downtown Colon Square carrying Spanish flags and shouting slogans against Podemos after the ballot had given them sufficient votes to negotiate the balance of power in the local government.

One journalist had his camera broken and several others were showered with abuse and pushed around before police intervened to break up the demonstration.

Lawyer Teresa Barrios said she was protesting peacefully when "some unpleasant" characters arrived and "began acting aggressively against members of the press."

Barrios said the main purpose of the protest was to stop Madrid's government lurching to the far left.