NASHVILLE, Tenn. -- Nashville police were asked to search for Vince Young on Monday evening after family members placed a call to the Tennessee Titans informing them of their concern for the quarterback's state of mind.
According to Nashville Metro Police spokesman Don Aaron, Young "abruptly" left his home in Williamson County at around 7 p.m. Monday without his cell phone. Those with him at his home, including family members, were "concerned with his emotional well-being," Aaron said.
Police issued a bulletin to all on-duty officers to be on the lookout for Young and negotiators were also placed on standby, a procedure that is common in such situations, Aaron said.
Someone contacted Fisher out of concern for Young, and Fisher contacted the police department, police said.
"Not having all the facts available to us and approaching the matter prudently, we contacted Metro Police to make them aware of the situation and asked for their assistance in locating Vince," the Titans said in a statement Tuesday. "He was located at a friend's house, where we made contact with him.
"He then came to the practice facility, where it was determined that those initial concerns by his friends and family were unfounded and he returned home without incident," the Titans said.
Young left the facility by himself in his own vehicle after speaking with Fisher and officers, police said.
Details were first reported on the Web site of WKRN-TV in Nashville, an ABC affiliate.
Aaron said there was an unloaded hand gun in the glove compartment of Young's vehicle. But as it is not against the law in Tennessee to transport an unloaded firearm with no ammunition present, it was not an issue for the police department, he said. He could not say if the gun was registered because it was not traced.
Young was booed during Sunday's season-opening victory over Jacksonville and did not finish the game because of an injury to his left knee. The Titans are expected to reveal results of an MRI on the knee sometime Tuesday, and possibly a timetable for the quarterback's return. Fisher said Monday it's not believed to be a season-ending injury, and ESPN's Chris Mortensen has reported Young will miss two to four weeks.
After throwing an interception in the fourth quarter, Young was late to join the offense for its next series, creating speculation that he tried to take himself out of the game after throwing what was his second pick. He sat on the bench after that interception, seemingly unmoved by players and coaches who tried to console him, often holding his head in his hands.
Fisher explained Monday that the issue was tightness in Young's hamstring and that there wasn't clear communication on the sideline about his ability to return to the field. Young did return to the field, but four plays later he injured his knee.
Veteran Kerry Collins is the only other quarterback on the roster, but the Titans worked out Quinn Gray on Tuesday. The team also was looking at QB Joey Harrington and a handful of receivers, including Glenn Martinez and Chad Jackson.
Paul Kuharsky covers the AFC South for ESPN.com. The Associated Press contributed to this report.