Energy company Cuadrilla has confirmed that it has started exploratory oil drilling in West Sussex as anti-fracking protests at the site entered a ninth day.
A Cuadrilla spokesman said: "We started test drilling at 11.15am, and we will do a 3,000ft vertical well. We will be there for two to three months."
The project has been subject to days of delays because of high-profile protests designed to halt delivery of trucks and equipment to the plant.
More top news
A survey showing the number of 14-17 years olds who have tried the products has raised questions about their appeal to young people.
Top UK Advertising boss calls politicians to stop meddling in business and concentrate on creating wealth rather than spending cash
A touching note from a passenger thanking a pilot for getting her home safely in the wake of the Germanwings tragedy has gone viral.