A fuel pump in a Toyota Camry, which has been out of service since the end of last year, has caused a huge fuel leak, affecting about 4,000 people.

The fuel pump was replaced in late January and was supposed to have a lifetime warranty, but the company has not provided the warranty number, according to the Milwaukee County Sheriff’s Office.

The leak occurred in a parking lot on a city street in downtown Milwaukee.

It happened within minutes of a city employee noticing it.

Milwaukee Police Chief David Ahern said the leak could have been a result of faulty wiring or improper installation.

Officials said the city will cover the cost of replacing the fuel pump and repairing the damage.