Loose trailer ‘ping-pongs’ across I-5

SAN DIEGO — A truck was towing a large vehicle trailer on I-5 when the trailer separated from its hitch and started “ping-ponging” across the freeway, hitting two vehicles Friday morning, witnesses said.

The incident slowed northbound traffic to three lanes near the offramp to H Street in Chula Vista.

Two women in an SUV were badly shaken but did not appear seriously injured, according to witnesses.

CHP is investigating the incident.