Spain train crash: What happened before deadly collision?

Families desperately searched for missing loved ones Thursday, more than 24 hours after two high-speed trains collided in central Spain, killing at least 68 and injuring dozens of others. Watch FOX LOCAL San Francisco live for the latest breaking news from San Francisco, Oakland, San Jose and the entire Bay Area. KTVU delivers the best in-depth reports, interviews and breaking news coverage in the San Francisco Bay Area and California. Subscribe to KTVU on YouTube: https://www.youtube.com/chan

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