Martin Brunt's piece came after two terrorists murdered 86-year-old parish priest Fr Jacques Hamel in a church in Rouen in northern France earlier this week, also severely injuring another churchgoer.
As a result, British police called UK churches to review their own security measures and remain "vigilant" and "alert".
They also said they had no specific intelligence indicating an attack against a church was imminent.
In his report, Martin Brunt visits St James' church in Weybridge, Surrey, before remarking that he "could've killed them all" if he was a terrorist because of the lack of security the church had.
People have made fun of the report on Twitter:
Two UPS men just knocked at my door to deliver a parcel. Neither of them was armed #icouldhavekilledthemall
— Steve Mellen (@stevemellen) July 29, 2016
Just found some Pokemon near my house, I just caught them but if I was a terrorist #icouldhavekilledthemall https://t.co/ApWrAoAMNq
— Grayling (@Grayling7) July 28, 2016
Knock knock
— DC (@GeekMeetsWorld) July 28, 2016
Who's there?
A terrorist
A terrorist who?
A terrorist who could have killed them all#ICouldHaveKilledThemAll
A disgraceful report from Sky News. @SkyNews #ICouldHaveKilledThemAll https://t.co/NMkvF1vtNK
— Andrew Penfold (@PenfoldOfficial) July 28, 2016
A man walks into a pub.
— Patrick Hearn (@p_hearn) July 28, 2016
If he was a terrorist he could have killed them all.#ICouldHaveKilledThemAll
Premier's contacted Sky News for a response.
