Firefighters battled a fire that broke out in New Jersey at a mansion Thursday night that was once owned by the late engineer and philanthropist Henry Rowan.

Flames were seen shooting from the roof at the historic mansion Westampton Township.

No injuries were reported. It's unclear what sparked the fire.

The amount of damage was not immediately known. However, a previous fire in June left smoke damage.

Henry Rowan died at the age of 92 last year. He gave $100 million to what is now Rowan University, making the gift the largest ever to a public institution of higher education.

The Associated Press contributed to this report.