NEW YORK (AP) — The Latest on a Manhattan steam pipe explosion (all times local):

10:30 a.m.

The executive director of a business improvement district says dozens of businesses are affected by a Manhattan steam pipe explosion.

Jennifer Brown, of the Flatiron 23rd Street Partnership, has been surveying the surrounding area in the hours after the 6:40 a.m. blast on Thursday.

There were no immediate reports of injuries.

Brown says a wide variety of businesses, from restaurants to retailers, were closed along Broadway and Fifth Avenue from 19th to 23rd streets. The blast also affected larger buildings with commercial office space.

The partnership had public safety officers, a clean team and other forms of assistance at the ready.

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8:40 a.m.

The Fire Department of New York says a high-pressure steam leak has caused street closings in Manhattan's Flatiron District.

There were no immediate reports of injuries. Buildings along several blocks of Fifth Avenue have been evacuated as a precaution.

The steam leak was reported at around 6:40 a.m. on Thursday.

Broadcast images showed a large plume of white steam billowing high into the air and the red flashing lights of responder vehicles.

WABC says the blast blew a hole in the middle of Fifth Avenue, sending chunks of asphalt into the street. It says there also were manhole explosions from West 19th Street to West 21st streets.

Some subway trains were bypassing the area.

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7:50 a.m.

The Fire Department of New York says a high-pressure steam leak has caused street closings in Manhattan's Flatiron District.

There were no immediate reports of injuries. Surrounding buildings have been evacuated as a precaution.

The steam leak was reported at around 6:40 a.m. on Thursday.

Broadcast images showed a large plume of white steam billowing high into the air and the red flashing lights of responder vehicles.

WABC says the blast blew a hole in the middle of Fifth Avenue, sending chunks of asphalt into the street. It says there also were manhole explosions from West 19th Street to West 21st streets.