Amadou Sanogo was a middle-ranking officer when he led the coup
Mali's ex-coup leader has been charged with "murders and assassinations", the justice ministry has said.
Armed troops went to Amadou Sanogo's home to take him before a judge, after which he was remanded in custody.
He had repeatedly been called in for questioning over the
deaths of six soldiers during an army protest in September but failed to
appear.
The March 2012 coup plunged Mali into chaos, allowing Islamist militants to take over territory in the north.
The al-Qaeda-linked insurgents were ousted from the major
towns in the north with the help of France and West African troops
earlier this year.
The BBC's Alex Duval Smith in the capital, Bamako, says
people seem relieved at the general's arrest, seeing it as a sign that
the newly elected civilian government is finally showing its teeth to
the military.
'Tears of joy'
Gen Sanogo, who was a middle-ranking officer when he led the
coup, was taken away in handcuffs from his home by about 25 armed
soldiers for questioning.
The justice ministry confirmed he had been charged with "murder and assassination and complicity in murder and assassination".
The former junta leader was also charged with kidnapping, a judicial source told the AFP news agency.
Gen Sanogo toppled President Amadou Toumani Toure, accusing
him of not doing enough to combat a Tuareg-led rebellion in the north.
As well as prompting the Islamist insurgency, the coup also
caused a rift between pro-junta soldiers, known as green berets, and
those loyal to the former president, known as red berets.
Our reporter says that in the past few months the former coup
leader had been elevated to general and moved to the former residence
of President Toure.
This created an impression among Malians that he was being protected by the authorities, she says.
A collective of wives, widows and parents of 23 Malian red
beret soldiers who disappeared in the month following the 2012 coup
welcomed the news of the general's detention.
Their spokeswoman, Aminata Diarra, told the BBC: "For over a year we shed tears of sadness. Today they are tears of joy."