People attend a campaign meeting of Spain's far-right party VOX on November 26, 2018 in Granada. With a tough line on immigration and Catalan separatism, Spain's tiny far-right party VOX is starting to make waves.

The success of the far-right party Vox in regional elections in Andalusia in southern Spain at the weekend has sent shock waves through the country's political establishment.

The nationalist party won 12 seats in the region's local assembly after the vote Sunday, far exceeding a prediction that it would win only two or three seats.

Although there were 109 seats up for grabs, neither of the region's main parties — the Socialist Party (with 33 seats) nor the conservative Popular Party (or PP, with 26 seats) — won a majority of the vote that would enable it to control the region.

As such, Vox is now in a position of kingmaker in negotiations over a possible right-wing coalition made up of PP, the center-right Ciudadanos party, which gained 21 seats, and Vox, a party that was formed in 2013 by former members of the PP.

PP national leader Pablo Casado said his party planned to hold talks in Andalusia with these other parties, Reuters said. On Monday, Ciudadanos ruled out any coalition with the Socialists, signaling an interest in an arrangement with PP and Vox, with all three parties seemingly united against the Socialist party.

"We are the ones who will bring about change, progress and the reconquest," Francisco Serrano, Vox's candidate in Andalusia, told a loud crowd gathered in Seville, many of whom waved Spanish flags and chanted "Spain! Spain!," Reuters reported.

Antonio Barroso, deputy head of research at Teneo Intelligence, said in a note ahead of the election that just a couple of regional MPs would give Vox a platform on which to build a successful campaign for next year's European Parliament election, "in which the (very proportional) electoral system tends to help the fortunes of small radical parties."

"However, while Vox might gain some support over the coming months, at this stage, it is unlikely that it will be able to become a large party given Ciudadanos and PP are unlikely to leave much space on the right for Vox to grow significantly," he said.

"If anything, this Sunday's Andalusian election will likely provide another reminder of the main trend underlying Spanish politics recent years: political fragmentation."