We’re now hearing from people who saw the incidents unfold.
Megan Morra was walking to work at 8:35 this morning when she saw a horse covered in blood.
Between Buckingham Palace and Victoria Station she saw police officers “running through the street”, and another walking a “very bloody” black horse down the path. She says the horse “appeared to have a head injury”.
“There was a lot of blood,” she says. “I was a bit distressed to be honest, looking at the poor horse.”
She added: “At the time I was really confused but it felt like something chaotic was happening as there were police officers or potentially security guards sprinting down the middle of Buckingham Palace Road.
“I assumed there had been some sort of accident or vehicle collision. There’s a lot of traffic on that road at that time.
“I kept walking along towards St James Park and the trail of blood turned and went that way so I assume it happened right on The Mall.”