A leaked State Department email indicates that officials were worried about the safety of House Oversight Committee chairman Rep. Darrell Issa after Democrats revealed his plans for a secret trip to Libya this week.

Issa, a Republican from California, has safely returned from his fact-finding trip to the country as his committee continues to investigate the terrorist attacks that killed America’s ambassador and three others in Benghazi on Sept. 11, 2012.

CBS News reported Thursday on an email that quoted a Libyan national sharing “his concern and his opinion that Representative Issa should not come to Libya for his own safety.”