The first episode of the new series looks at how Donald Trump reinvented the immigration agency ICE in the US.

Sky News is relaunching its YouTube series Explains.

In each episode of the new long-form series, our reporter Olive Enokido-Lineham will break down one topic and get to the context behind the story.

She'll be speaking to our correspondents from around the world and experts on that particular topic.

Before re-launching Sky News Explains, Olive specialised in verification and open-source investigations (OSINT). Her stories include investigations into the war in Gaza, to verifying videos from Ukraine and Syria.

Olive also produced the Sky News documentary Escaping Putin, which follows a Russian soldier who fled from the army and the anti-war activists behind it.

For the first episode of Sky News Explains, Olive looks at how Donald Trump reinvented the US immigration agency ICE.

ICE has been in the news for months, but the agency itself is over 20 years old. Olive looks at who ICE are, how their tactics have changed and why Trump has given them so much money and power.

In the episode, Olive analyses footage of ICE agents and data. She talks to former ICE acting director John Sandweg, and two of our US correspondents Mark Stone, in Washington DC and Martha Kelner - who reported from Minneapolis following the shooting of Renee Good.