NEW ORLEANS (AP) — The latest headache for the beleaguered New Orleans police: late night robberies where gunmen burst into tony establishments in normally quiet areas, making off with the night's take and the patrons' wallets. It's happened at two restaurants in recent weeks and at an upscale bar on Monday night.

All three robberies happened in the city's Uptown area.

In each, police say, armed masked men burst in and robbed patrons as well as the business itself.

All the robberies involved suspects in dark hoodies and masks, but a firm link hasn't been established.

U.S. Attorney Kenneth Polite (poh-LEET') joined Mayor Mitch Landrieu on Tuesday to pledge support in solving the crimes.

Darlene Cusanza of the local Crimestoppers organization said the reward for information leading to solutions in the robberies totals $30,000.