An was an arson, according to East Windsor police.
Police said there were signs of forced entry at the house and the fire remains under investigation.
When firefighters arrived at the house flames were seen shooting through a second story window, according to Fire Chief Barry Rashkin, of . There were no injuries.
Mercer County Prosecutor’s Office arson investigators responded to the fire, and are assisting East Windsor police, who are leading the investigation, prosecutor’s office spokeswoman Casey DeBlasio said in an email.