ROME - Police in Italy, Switzerland and France searched Sunday for 6-year old twin girls who disappeared after their father died in an apparent suicide.

The body of Matthias Kaspar Schepp, a Canadian-born resident of Switzerland, was found near a railway station in southern Italy on Thursday. Police believe he threw himself under a train.

According to Italian news reports, the man picked up his daughters Alessia and Livia from their mother's home in Lausanne, Switzerland, on Jan. 28, but failed to take them to school on Monday morning as scheduled. The couple are reportedly separated.

After leaving Lausanne, Schepp turned up in Marseille and Toulon, France, before showing up in Italy, Italian police official Alfredo Fabbrocini said.

"There's a gap of a few days," Fabbrocini said, adding that police were trying to track down the man's movements through cash withdrawals, CCTV, witnesses and phone calls.

Authorities have urged anybody with information to come forward. The search has included helicopters and dogs, according to ANSA. A Facebook page invites people with information to make contact.

Fabbrocini said Schepp's will had been found in his house in Switzerland.