NEW: French journalist Romeo Langlois works for France 24 NEW: FARC group said in February it would stop kidnapping civilians for money He was captured last month and is being held by FARC He is expected to be released Wednesday (CNN) -- Rebels in Colombia say they will release French journalist Romeo Langlois on Wednesday, a move that comes after negotiations involving government officials and the Red Cross. Langlois, a war journalist for the international news channel France 24 with more than 10 years of experience in Colombia, was reporting alongside soldiers during an April 28 attack by the Revolutionary Armed Forces of Colombia, known as FARC, according to the government. Four people were killed and six were wounded in the ambush by the rebel group. This week, Red Cross officials said the Colombian Defense Ministry will cease all military operations in an area of the country ahead of the release. The cease-fire, along with other safeguards for the FARC, are part of a document signed by an International Committee of the Red Cross representative in Colombia, Jordi Raich, along with Colombian Deputy Defense Minister Jorge Bedoya and French ambassador Pierre-Jean Vandoorne on Sunday. The cease-fire in the Caqueta area will last until early Thursday. A video was also released showing the veteran journalist. In the video, he receives treatment for an arm wound and talks about his experience reporting on the conflict in Colombia. "I cover both sides, seeking the opinion of everyone," he said, CNN could not confirm the authenticity of the video, which gave no indication of when it was shot. The rebel group has been at war with the government since the 1960s, making the insurgency Latin American's oldest. This spring, the group freed the last of 10 government hostages after holding them for more than a decade. In February, FARC said it would also stop kidnapping civilians for money. It did not address the fate of its civilian captives, nor did the group renounce kidnapping for political purposes. Hundreds of civilians remain prisoners of the guerrilla group throughout Colombia, according to the nonprofit Free Country Foundation. The U.S. State Department Human Rights Report on Colombia said that in 2011, FARC and the ELN (National Liberation Army), "as well as organized criminal gangs and common criminals, continued the practice. The Ministry of Defense reported that 298 people were kidnapped during the year (77 by FARC, 31 by the ELN, four by organized criminal gangs, and the rest by other illegal groups), compared with 282 in 2010 ... Some human rights groups questioned the government statistics, arguing that many cases went unreported and that several hundred kidnapping victims were held at year's end. All illegal groups, including guerrillas, had killed some kidnapping victims.