Meghan Markle and Prince Harry have been told to lock down their California home after a mountain lion was spotted in the area.The couple - who are hoping to visit the UK later this year - have been warned to secure their £11million home after the after the animal was captured on security footage prowling around the exclusive Montecito community where the couple live alongside other celebrities such as Oprah Winfrey, Ariana Grande and Brad Pitt. CCTV images show the animal roaming outside a nearby homeowner's driveway a few miles from the couple’s residents, with locals warned the lion could be a threat to people’s pets.