Meet Lamar Odom's dad,they look so much alike!

Joe Odom is in Las Vegas to visit his son.

E! News has obtained photos of Lamar Odom's father arriving at Sunrise Hospital, where the 35-year-old ex-husband of Khloé Kardashian is currently in a coma and breathing with a ventilator after an apparent drug overdose.

It appears that Joe Odom took a flight to Vegas today after the former NBA star was found unconscious at a Nevada brothel on Tuesday. See his pics after d cut.....

Despite media reports to the contrary, we're told Lamar is "in a coma and hasn't woken up or responded." Khloé, who was married to Odom for four years, has not left his bedside since she arrived at the hospital. Lakers star Kobe Bryant is also in the hospital with Lamar, and Kim Kardashian and Kris Jenner have been spotted at Sunrise Hospital.

Earlier today, a hospital source told E! News that Lamar appears to have suffered an "ischemic stroke," which is caused by a blood clot preventing blood flow to the brain. This type of stroke is often associated with a cocaine overdose, among other drugs.

"So, likely there's brain damage, but they're not sure how much," the source added.

Meanwhile, E! News has exclusively spoken with two of Lamar's cousins at a family home in Queens, N.Y.

"He's fighting. He's doing the best that he can," they tell us. "We're sending him our prayers."

Our thoughts are with Odom and his family and friends during this difficult time.