Utility crews were making repairs after three manhole explosions rocked downtown Atlantic City
Wednesday.
White smoke rose at least 10 feet across from Boardwalk Hall after the 6:30 a.m. blasts.
Emergency units left the scene and a two-block section of Pacific Avenue was closed to traffic.
Fire Chief Dennis Brooks tells The Press of Atlantic City one of the explosions caused a portion of the sidewalk to cave in between Mississippi and Georgia Avenues.
A second explosion happened at one location around 11 a.m. but it was quickly extinguished.
There were no reports of injuries.
The fire chief says utility crews are pumping out a significant amount of water. Brooks says explosions tend to occur when water seeps into the area surrounding electrical lines.
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The exact cause of the morning blasts was not immediately clear.
