A high-speed train slammed into the rear of another train that had stopped in central Spain on Wednesday, derailing two cars and killing at least 10 people, authorities said, according to an NPR report carrying Associated Press coverage.

The Guardian, in live coverage by Jakub Krupa, reported ten deaths. The outlet said Spain's rail system operator, ADIF, stated that the crash occurred on Wednesday morning in the province of Toledo.

A local government spokesperson told the broadcaster TVE that the death toll "will almost certainly rise," according to The Guardian. The same outlet reported that Esther Padilla told the broadcaster the situation was expected to worsen.

CBS News reported that several people were injured. Its summary said local media described the two trains as colliding while traveling in the same direction. The CBS News summary does not give a count of the injured.

The accounts differ in emphasis. NPR described a high-speed train striking a train that had stopped, while CBS News relayed local media reports of trains moving in the same direction. Neither summary gives a cause for the collision, and the reports available for this story do not say how many of the injured were on each train.

Officials have not, in the reports reviewed here, confirmed a final death toll. The Guardian's account indicates that the figure could increase, and the sources do not say when updated figures will be released.

Sources: CBS News: Several injured as two trains crash in Spain, authorities say; The Guardian: Ten reported dead after two trains collide in Spain - latest updates; NPR: At least 10 dead in crash between 2 trains in Spain.