José Fernández — the Miami Marlins pitcher who died early Sunday in a boating accident — was killed by trauma, not drowning, authorities said Monday.

According to Lorenzo Veloz of the Florida Fish and Wildlife Conservation Commission, Fernández and two friends were traveling at full speed, between 55 and 65 miles per hour, when the boat hit a Miami Beach jetty and capsized on the rocks.

"It does appear that speed was involved due to the impact and the severity of it," Veloz said of the crash.

None of the three passengers were wearing life jackets, Veloz said, and the boat did not belong to Fernández, nor was he the one behind the wheel during the crash. Neither alcohol nor illegal drugs were found at the scene. Veloz said neither initially appeared to have played a role in the crash.

Toxicology reports have not yet been made available to the public. According to TMZ, however, all three autopsies have been performed.

Fernández's death sent a shock wave through baseball. Many took to social media to mourn the loss of Fernández, whose energy and passion made him an emerging face of the sport.

Major League Baseball held a league-wide moment of silence on Sunday. A handful of players hung Fernández jerseys in their team dugouts.

Yasiel Puig putting José Fernández's jersey up in the Dodgers' dugout. pic.twitter.com/SyciS0QzMb — Arash Markazi (@ArashMarkazi) September 25, 2016

The Marlins, who cancelled their series finale against the Braves on Sunday, will all sport No. 16 jerseys on Monday night, a game Fernández was scheduled to pitch.

The Associated Press contributed to this report.