Latest local news, weather, high school sports in the Rio Grande Valley

South Padre Island authorities continue to investigate why a dolphin-watch boat crashed into the Queen Isabella Memorial Bridge late Friday.

U.S. Coast Guard officials say the boat slammed into a wooden rail near the peak of the causeway during a tour.

The crash broke the railing and damaged one side of the boat, however, officials say there was no structural damage to the causeway.

Authorities don’t believe alcohol was a factor in the crash.

They say the boat’s captain claimed it was the swell and current that caused the crash.

The case is still under investigation.