Updated

Heat owner Micky Arison has been fined by the NBA, reportedly for $500,000, for recent Twitter posts about the lockout.

NBA spokesman Tim Frank confirmed in an email that Arison was fined, but did not confirm specifics. Yahoo! Sports reported the amount of the fine on Monday, citing league sources.

A report by the South Florida Sun Sentinel said the fine comes after NBA commissioner David Stern prohibited team and league personnel from commenting on the lockout outside of approved media sessions.

The Sun Sentinel report said Arison replied after a person directed a Twitter message to him, essentially saying the lockout was about NBA owners and players fighting over money provided by fans. Arison's reply said, "Honestly u r barking at the wrong owner," according to the report, but was later deleted.

The paper reported Arison replied to several other Tweets, indicating there may be a divide between owners of small market and large market teams during negotiations.