NEW YORK - (AP) - New York City officials say abandoned cars lefton city streets slowed efforts to clear streets after a massivepost-Christmas snowstorm.

Mayor Michael Bloomberg says snow fell at a rate of 2 to 3inches an hour at some points overnight, forcing thousands ofsanitation workers to re-plow some roads.

He and Sanitation Commissioner John Dougherty say cars that wereleft in the streets also delayed street plowing. They say it willbe at least 24 hours before all streets are cleared.

The mayor says 2,400 sanitation workers were on duty overnightuntil 9 a.m. Monday and then were relieved by a second shift. Theworkers used 1,700 plows to clear streets.

Snowfall totals in the city ranged from 15 to over 20 inches.