- Fico was wounded as he left a government meeting in the central town of Handlova.
- Earlier, a witness told the BBC she heard three shots - now another witness tells Reuters she heard the same.
Slovak Prime Minister Robert Fico has been shot a number of times in what officials are calling an assassination attempt.
He is in a life-threatening condition, according to an update on his official social media account.
Local reports say Fico was hit in the stomach, arm and leg - a witness tells the BBC she heard three shots.
His alleged assailant has been detained by the police.
Fico was wounded as he left a government meeting in the central town of Handlova.
Earlier, a witness told the BBC she heard three shots - now another witness tells Reuters she heard the same.
Lubica Valkova was in the area to “shake hands with Mr Fico”, and was “taking pictures of him when he walked out of the building”.
“We heard something like a bang, we thought someone made a joke and threw a firecracker on the ground, that was my first reaction.
"I heard three shots, it was quick one by one like if you throw a firecracker on the ground."
More now from Slovakia's outgoing president, who confirms that police have detained the attacker and that officials will be providing more information "as soon as possible".
Zuzana Caputova adds in her statement that the shooting on her political opponent is an "attack on democracy".
Earlier, Caputova condemned the shooting as a "brutal and ruthless" attack.
Milan Nic, a former adviser to Slovakia's deputy foreign minister, says the political climate in Slovakia has been polarised for a number of years, adding: "I'm sorry to say that this was coming."
"This is not an isolated incident, unfortunately," Nic tells BBC News.
He says while it's terrible news that the prime minister was shot, "at the same time, there were other politicians receiving threats, including current president (Zuzana) Caputova.
"Now, the political class needs to take it very seriously."