Fentanyl

As the president tries to force Mexico to stop the flow of drugs, cartel members tell Quentin Sommerville they will not be deterred.

President Trump has blamed China for its opioid crisis and imposed sweeping tariffs.

The security forces scored a victory with a huge fentanyl bust but levels of violence remain high.

El Mayo co-founded the notorious Sinaloa crime syndicate with El Chapo, who is currently jailed in the US.

Nitazenes, which can be stronger than fentanyl, are behind an increase in overdose deaths, the UN says.

Thousands of Chinese companies are making synthetic opioids and shipping them around the world.

Bryan Emery was a fentanyl user living on the streets of San Francisco, a city hard-hit by the opioid crisis.

Ellie Baxter tells court how her parents became irritated by Luke D'Wit's frequent presence.