The northbound span of the Lake Pontchartrain is closed due to a crash, authorties said.

The bridge sent out a notice at 2:22 p.m. Friday afternoon.

Causeway General Manager Carlton Dufrechou said three vehicles were involved in a crash at mile marker 22, which is just a couple miles from Mandeville.

He didn't know how long it would be closed, but thought maybe as much as 45 minutes or an hour.

Check back with NOLA.com for more as news becomes available.

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