The US has raised its reward for information leading to Venezuelan President Nicolas Maduro’s arrest to $50m, accusing him of major drug trafficking, according to BBC.

Attorney General Pam Bondi linked Maduro to cocaine smuggling and criminal gangs like Tren de Aragua and the Sinaloa Cartel. The DEA says it seized large amounts of cocaine connected to him.

Maduro denies the charges. He returned to power after a disputed election earlier this year. The US has long accused him of drug trafficking and corruption, increasing tensions between the two countries.

Former Venezuelan intelligence chief Hugo Carvajal was recently convicted on drug charges in the US, raising speculation of cooperation against Maduro, BBC reported.