A top U.S. Immigration and Customs Enforcement agent from San Diego will be taking over as the agency’s new special agent in charge of homeland security investigations in Georgia and the Carolinas.

ICE Director Sarah R. Saldaña announced Nick Annan’s appointment this week. Annan previously served as ICE’s deputy special agent in charge in San Diego, where he supervised more than 250 law enforcement personnel. He has held several other leadership positions within ICE, including chief of staff for homeland security investigations in Washington, D.C., and deputy attaché in Rome, Italy.

In Atlanta, Annan will be replacing Brock Nicholson, who took another job with ICE in Australia this year.

ICE agents in Georgia and the Carolinas are responsible for investigating human trafficking, child pornography, money laundering, narcotics and weapons trafficking, financial crimes, commercial fraud and violations relating to intellectual property rights.

“The diversity of work will be exciting,” Annan said in a prepared statement. “The southwest border holds inherent challenges that are different than the challenges we face in Atlanta. I look forward to that shift.”