Pakistan has rearrested former president Pervez Musharraf amid accusations that he was responsible for the deaths of more than 100 people when he ordered a 2007 mosque raid.
The operation at the radical Red Mosque in Pakistan's capital of Islamabad came after a week-long standoff between the mosque's supporters and security forces. A cleric was among those who died.
The arrest comes a day after a lawyer for Musharraf announced he was free to leave the country, having been granted bail in three other cases.
"We are angered to learn that political shenanigans continue and Former President Musharraf has been arrested again in yet another frivolous complaint filed against him for the crime of being the President of Pakistan and Chief of the Pakistan Army at the time the Red Mosque in Islamabad was cleared of defiant hard core militants, extremists, terrorists and abductors through a Government authorized military operation," Musharraf's spokesperson, Raza Bokhari, said in a statement on Thursday.
"In the end, we are confident that truth will prevail and all these false, fabricated and fictitious charges against the Former President will have no legs to stand on."
The arrest is believed to be tied to the death of cleric Abdul Rashid Ghazi, who was killed when Pakistani troops raided the mosque while hardline Islamists were barricaded inside, according to the BBC.
Musharraf faces murder trials in the assassination of former prime minister Benazir Bhutto and a Baloch tribal leader, and has received bail in both cases. He also faces charges over his attempt to get rid of Pakistan's higher judiciary in 2007.
He went into exile in 2008 but returned to the country earlier this year.
NBC's Wajahat S. Khan and Reuters contributed to this report.