updated 08/09/2011 AT 5:00 PM ET
•originally published 08/09/2011 AT 5:45 PM ET
Exactly what happened to Gavin DeGraw remains a mystery – even to the victim himself.
In a new message to fans, DeGraw Tweeted Tuesday afternoon afternoon: “Honestly, I don’t remember much. I only know I can recover from here.”
The singer, who has been discharged from the hospital, went on to thank his fans, but provided no further explanation.
“Thank u all for your genuine concern,” he wrote. “I love u guys.”
Around 4:00 a.m. Monday, DeGraw was walking through New York’s East Village when “some kind of argument” broke out between him and a group of men he didn’t know, according to a police source.
He was later clipped by a taxi before someone called 911 and he was taken to the hospital and treated for a broken nose, concussion and facial lacerations.
According to police sources, DeGraw’s recollections are clouded by his head injuries and the possibility that he was also intoxicated at the time. Police are hoping to find witnesses and security camera footage to fill in the gaps.