Worker rescued from Northwest Side water tower

CHICAGO (WLS) -- A worker was rescued from a water tower on Chicago's Northwest Side.

Chopper 7 HD was over the scene Friday morning in the 4200-block of Knox Avenue in the city's Old Irving Park neighborhood.

Firefighters managed to get the worker down safely around 9:30 a.m. He was not hurt.

Investigators said there may have been an equipment malfunction.