Islamist militants have attacked a river boat in north-eastern Mali, killing at least 49 civilians.
They also reportedly attacked an army camp, killing 15 soldiers, while around 50 militants are said to have died.
The government has declared three days of national mourning.
The Islamist threat has been growing despite claims by the military that Russian Wagner Group mercenaries are turning the tide of their campaign.
The northern city of Timbuktu has been under blockade since the end of last month and there have been several other recent attacks on transport.
Militants reportedly attacked the boat as it was traveling on the River Niger from the town of Gao to Mopti.
Militants also attacked an army camp in the Bourem Circle in the Gao region.