Professor's kids gatecrash live BBC broadcast: Here's why they burst through the door

BBC correspondent Professor Robert E Kelly's live broadcast about the impeachment of South Korea's President Park Geun-hye has become the talk of the town.

However, it is not because of the serious topic that the 44-year-old was discussing, but due to his adorable children who gatecrashed his interview.

In the now viral video, his four-year-old daughter first waltzes into the room while wearing a bright yellow jacket and walks up to the computer, looking straight into the camera.

Slightly amused, Professor Kelly nudges for the girl to sit down -- only for her younger brother, who is nine months old, to announce his arrival in a stroller.

Things get even more hilarious when Professor Kelly's panicked wife rushes into the room to retrieve their kids, before making a dash to leave.

Professor Kelly's 72-year-old mother, Ellen, told Daily Mail she could have been the accidental cause of the funny gaffe.

She and her husband usually Skype with their son, his wife and the two children from the same place that he was carrying out the BBC interview.

She said, "Robert usually Skypes with us from his home office, which is where he did the interview. The kids probably heard voices coming from the computer and assumed it was us. It was just hilarious."