Tiger Woods gives his thoughts and reacts to the news of Kobe Bryant's death on Sunday. (1:42)

SAN DIEGO -- While competing in the Farmers Insurance Open at Torrey Pines on Sunday, a shaken and subdued Tiger Woods was unaware that Kobe Bryant had died.

The news of Bryant's reported death broke while Woods played the front nine, and his caddie, Joe LaCava, learned of the accident but decided not to tell his boss, waiting until after he walked off the green to share the news.

Bryant and his daughter Gianna were among several people killed in a helicopter crash on Sunday in Calabasas, California, a source confirmed to ESPN's Adrian Wojnarowski. Bryant was 41, and Gianna was 13.

A stunned Woods went to the scoring area to sign his card, spoke briefly with PGA Tour officials, signed a few autographs and did a television interview before meeting with reporters. Golf never came up.

"It's one of the most shocking, tragic days that I've ever been a part of in a very quick span here,'' Woods said.

Starting the day 5 shots out of the lead, Woods shot a final-round 70 to tie for ninth and finish 6 shots back of winner Marc Leishman. It was his best finish at Torrey Pines since he won the tournament for the seventh time in 2013.

As he played, there was some speculation that Woods had been made aware of Bryant's death -- which was not the case.

"I didn't understand why they were yelling, 'Do it for Mamba,' on the back nine," Woods said of a nickname for Bryant. "People yell things all the time, so I was just plodding along, doing my own thing. Then when Joey told me that here. ... It's unbelievable, the reality that he's no longer with us.