FIU (5-4, 3-3 Conference USA), which had won three consecutive games before being upset by Middle Tennessee 50-17 last week, led 16-7 going into the fourth quarter.
Morgan ran in from the 1 to go up 24-10 with 6:17 remaining in the game. Old Dominion marched 65 yards in 10 plays to close within a touchdown after Lala Davis scored from the 10 with 2:54 left.
The ensuing onside kick went out of bounds and FIU took over on ODU's 46. The Monarch defense stiffened, forcing a punt that gave the Monarchs the ball on their own 9. Two plays later Olin Cushion III picked off a Hayden Wolff pass to secure the win.
Jose Borregales had field goals of 21, 31 and 42 yards in the first half to give the Panthers a 9-7 lead at the break.
Wolff threw for 169 yards for Old Dominion (1-8, 0-5), which has dropped eight straight.
Domani Jackson, No. 5 recruit in 2022 class, commits to USC
Five-star cornerback Domani Jackson announced his commitment to USC on Saturday, choosing the Trojans over Arizona State, Clemson, Michigan and Ohio State.
Notre Dame placed on probation for one year
Tom VanHaaren breaks down the recruiting violations at Notre Dame.
New South Carolina Gamecocks coach Shane Beamer completes coaching staff
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New Tennessee Volunteers AD Danny White embracing rebuild, plans to hire new football coach quickly
Danny White is embracing the opportunity Tennessee is giving him to rebuild a Power 5 program, and not even the prospect of potential NCAA punishment deterred him from taking the athletic director job.
Three QBs from College Football Playoff among 131 players on official early entry NFL draft list
Ohio State junior quarterback Justin Fields is among 98 players granted special eligibility by the NFL into the league's draft, while national championship-winning QBs Mac Jones and Trevor Lawrence are among another 30.
Ohio State Buckeyes coach Ryan Day encouraged by returning players who put off NFL dreams
Despite several underclassmen leaving early, Ohio State coach Ryan Day said he is encouraged by the large number of players who decided to return for the 2021 season.