Spain appears destined for painful political negotiations after Sunday’s elections, when no single party won enough parliamentary seats to form a government. Prospects for coalition-building now remain uncertain.

With over 99% of the vote counted, the center-right Partido Popular (PP) is set to come in first, winning 136 seats. The upstart far-right Vox party, a possible coalition partner to PP, is forecast to win 33 seats.

Prime Minister Pedro Sanchez’s ruling center-left Socialist party meanwhile is on course to win 122 seats, with likely coalition partners Sumar at 31 seats.