'We grieve for the officers killed in Baton Rouge today,' the billionaire businessman said, adding: 'How many law enforcement and people have to die because of a lack of leadership in our country? We demand law and order.'
On Twitter, the 70-year-old added: 'We are trying to fight ISIS, and now our own people are killing our police.
'Our country is divided and out of control. The world is watching.'
Trump continued to repeat the word 'divided', first telling fans to watch his upcoming 60 minutes interview and promising he would be discussing 'law and order' before adding, 'Bad times for divided USA!'
And three hours later Trump went on a second rant that took aim at Obama, writing: 'Our country is totally divided and our enemies are watching.'
'We are not looking good, we are not looking smart, we are not looking tough!'
'President Obama just had a news conference, but he doesn't have a clue. Our country is a divided crime scene, and it will only get worse!'