TRAGEDY: Basketball Legend Kobe Bryant and Daughter Die in Helicopter Crash

This post has been updated to reflect new information. See below.

TMZ reports that basketball star  Kobe Bryant died in a helicopter crash in Calabasas Sunday morning. Five people, including the pilot, are confirmed dead. Bryant is survived by his wife Vanessa, and four daughters, including a newborn. He was 41 years old.

Kobe has famously used a helicopter to travel for years -- dating back to when he played for the Lakers. He was known for commuting from Newport Beach, CA to the STAPLES Center in DTLA in his Sikorsky S-76 chopper.

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Kobe is widely considered one of the greatest NBA players of all time -- making 18 All-Star teams during his 20 year career with the Lakers. He was a first-round pick in the 1996 draft, winning 5 NBA championships, 2 NBA Finals MVPs and he was the league MVP in '08.

The Lakers famously retired both of Kobe's jerseys, number 8 and 24 ... the only player in team history to receive that honor.

The cause of the crash is under investigation.

Kobe Bryant's last tweet was posted Saturday.

Social media reacted with shock to news:

UPDATE: There have been some conflicting reports as to whether Bryant's daughters were on board.

UPDATE: TMZ confirms that Kobe Bryant's 13-year-old daughter was also on board the helicopter when it crashed.

12:35 PM PT -- Kobe's daughter Gianna Maria Onore -- aka GiGi -- was also on board the helicopter and died in the crash ... reps for Kobe tell TMZ Sports. She was 13.

We're told they were on their way to the Mamba Academy for a basketball practice when the crash occurred. The Academy is in nearby Thousand Oaks.

UPDATE: President Trump has made a statement via Twitter.

This story is developing...