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(The Associated Press circulated the following article on September 6.)

YORBA LINDA, Calif. — A freight train derailed early Tuesday without causing any injuries but it temporarily blocked commuter train traffic on two Metrolink lines, officials said.

The derailment occurred about 4:10 a.m. in northern Orange County when a Burlington Northern Santa Fe platform car backed into a siding and struck other equipment, said Lena Kent, a spokeswoman for the railroad.

The derailment blocked three tracks and prompted Metrolink to cancel two routes that run through the area, said Metrolink spokesman Francisco Oaxaca.

One of the three tracks reopened at 8:30 a.m. and the Metrolink trains were operating Tuesday afternoon with minor delays expected, Oaxaca said.