The phrase "agents were assigned to" is correct and usable in written English.
It can be used when describing the allocation of agents to specific tasks, roles, or responsibilities within an organization or project.
Example: "In the recent operation, several agents were assigned to monitor the situation closely and report any developments."
Alternatives: "agents were designated to" or "agents were allocated to".
In recent years, as many as 150 agents were assigned to the office, they said.
Two thousand Federal agents were assigned to the case, 20,000 individuals were interviewed.
Although 200 FBI agents were assigned to investigate the burglary, the culprits weren't caught before the five-year statute of limitations had expired.
At least three F.B.I. agents were assigned to each family: one supervising agent, one for "victim assistance," and one for hostage negotiation.
Describing for the first time the scale of the Bush administration's hunt for the sources of The Times article, former officials say 5 prosecutors and 25 F.B.I. agents were assigned to the case.
The reward was raised to a million dollars; more F.B.I. agents were assigned to the case; and the original government lawyer on the case was eventually replaced by Steven D. Clymer, who had been a senior prosecutor in the U.S. Attorney's Office in Los Angeles.
Fewer than 150 of the bureau's agents are assigned to mortgage fraud, for instance.
About 5,500 agents are assigned to immigration enforcement, but over eight million immigrants are estimated to be in the country illegally.
Though 40-year-old murder cases are incredibly difficult to solve, no Federal Bureau of Investigation field agents are assigned to pursue the cases full time.
The military's four major regional commanders have asked that F.B.I. and Treasury Department agents be assigned to their staffs to improve coordination between the military and civilian agencies in the global war against terrorism, Pentagon and administration officials say.
Eric Nordstrom, a regional security official at the US embassy in Tripoli until July, told investigators that he sent two cables to the State Department in March and July and asked that more diplomatic security agents be assigned to the lightly guarded compound in Benghazi.
