The offices of the Christian Party were vandalised following the launch of a new bus advertising campaign proclaiming that there is a God.

The adverts were launched by the party last Thursday in response to the British Humanist Association’s bus adverts, which state, “There's probably no God. Now stop worrying and enjoy your life.”

The Christian Party’s adverts are displayed on 50 London buses and carry the slogan: “There definitely is a God. So join the Christian Party and enjoy your life.”

Police have launched an investigation after the front windows of the party’s London headquarters were found smashed in on Saturday morning. The police suspect the incident to be a religious hate crime.

Leader of the Christian Party, the Rev George Hargreaves, said the incident was a “sign of the times” but vowed to continue on with the campaign.

“I’m disappointed more than shocked,” he said, describing how in Scotland the Christian Party had experienced similar acts of violence when protesters tore down their campaign posters.

“It’s just a shame that people who are intolerant of Christianity feel that they need to destroy property and to be violent,” he continued.

“We are not phased by it. What was intended for evil will be used for good. If they break our windows, we will just put in new windows.

“We don’t have to get violent or angry about it. We just have to love the Lord, keep a good witness and the Lord will do the rest.”

The party is due to launch the same advert in a six-week campaign in Scotland, beginning February 24.