About 20 of the dozens of hostages seized by Boko Haram in Cameroon have reportedly been released by the Islamists while they were being chased by the army.
In their latest cross-border raid on Sunday, the Nigeria-based jihadists captured at least 60 people in northern Cameroon, most of them women and children.
But they released around 24 as they were chased by the army shortly after the raid, a source with a non-governmental organisation said on condition of anonymity on Monday.
Cameron's national radio and television reported that about 20 hostages were freed but did not provide any details.
The weekend raid was the largest abduction ever carried out in Cameroon's far north by Boko Haram and comes amid mounting fears the group is expanding its operations into neighbouring countries.
Cameroon had come under attack last Monday when it said its troops repelled a raid by Boko Haram on a northern military base, killing 143 militants in the process.
Brutal raids, massacres, suicide bomb attacks and kidnappings by the Islamists have claimed at least 13,000 lives and driven an estimated 1.5 million people from their homes, mainly in its stronghold in northeast Nigeria.
Chad on Saturday sent troops, about 400 military vehicles and several attack helicopters to Cameroon and Nigeria to aid in the fight against the Islamist militants.
