Spain has lashed out at some of its European Union partners, accusing them of adopting a "selfish attitude" toward the escalating migrant crisis unfolding in Spanish territory, as the death toll continues to rise.

The rebuke comes as the EU prepares to convene an emergency meeting to address the worsening situation, with pressure mounting on member states to respond collectively rather than leave Spain to manage the crisis largely alone.

Madrid's pointed criticism signals deep frustration with allies it believes are failing to share the burden of one of the bloc's most pressing humanitarian challenges. The emergency gathering is expected to bring the migrant crisis to the top of the EU's agenda as the human cost grows.