The BBC reports that an incident occurred near a Force India hire car as members of the Silverstone based team came to a halt in a traffic jam after leaving the circuit.
No one was hurt, but "one team member not involved in the incident asked to return to the UK", the BBC said.
"A spokesman said they were not the target of the attack, which took place on the outskirts of the capital Manama," the report added.
The news was confirmed by The Times' Kevin Eason, who said the incident involved a Molotov cocktail, as well as Telegraph correspondent Tom Cary.
Cary said Force India confirmed team members were "momentarily caught up in (a) disruption".
"One team member will go home, they tell me," he added.