A TV presenter screamed in terror after an enormous cockroach slammed into her chest.

Mary Beth McDade was captured shrieking as the bug banged into her left breast.

Not content with flying into her, it started crawling up her chest toward her neck leaving her saying: 'Ah Jesus. Oh God.'

She is shown flicking desperately at it with her microphone and script in a video on the Mirror website.

The Los Angeles journalist tried to flick at the bug with a script and microphone

A quick-thinking crew member tries to come to her aid, only to think twice when he sees the bug's position.

'Hang up. I was coming to get it. But I didn't want to feel you up.'

A crew member came to remove the cockroach but stopped short of touching her breast

The KTLA reporter was preparing for a live broadcast last week in Los Angeles when the bug attacked.

She went on the complete her broadcast as though nothing had happened.

The insect crawled up the presenter's chest after landing on her left breast

The clip was later posted online by her colleague Marcus Wilson-Smith and was subsequently picked up by several news outlets - including KTLA.

KTLA broadcast the video during another news show to ask whether the bug was a moth, beetle or cockroach.

This isn't the first time the presenter has been shaken on air - she was once attacked on camera while covering the aftermath of David Bowie's death.

In January 2016 she was reporting on the rock star's fans mourning at his Walk of Fame star when a hooded man began smiling behind her with several other people.

He then approached her from behind as she spoke to KTLA anchors back in the studio.

She said he brushed against her a uttered a lewd, sexual remark as the camera panned away from the incident.

But camera crew managed to catch shakey footage of him running away, with officers arriving on the scene shortly after.