The Portillo’s in Elmhurst is closed today after a nearly two hour swat standoff this morning. Police say it was a domestic dispute between and a man and a woman in a relationship that were part of a three person cleaning crew working inside the restaurant. Police say while they were cleaning the man attacked his partner with a knife. Both women escaped the building but one of the women was injured. The man was found unresponsive with a self-inflicted injury, according to police.