Two rail officials investigated over deadly Italian train crash

A man looks at the wreckage at the site where two passenger trains collided in the middle of an olive grove in the southern village of Corato, near Bari, Italy, July 13, 2016. REUTERS/Alessandro Garofalo

BARI, Italy (Reuters) - Two officials in charge of railway stations in southern Italy where a train crash killed 23 people have been placed under investigation as magistrates seek to determine the cause of the collision, a judicial source said.

Two trains travelling in opposite directions on a single-track line in rural Puglia on Tuesday ploughed into each other at high speed. In addition to the fatalities, dozens of people were injured, in one of Italy's worst rail disasters.