Hello. A US senator has met a man deported to El Salvador by mistake by the Trump administration. My colleagues bring us up to speed on the case. A joint BBC World Service and BBC Verify investigation traces guns trafficking from the US to Haiti. And ahead of Easter Sunday, King Charles takes part in an old royal ceremony.

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TOP OF THE AGENDA

Senator's visit adds to deportation dispute

Van Hollen visited El Salvador hoping to secure Mr Ábrego García's release. Photo provided by US Sen Chris Van Hollen

Maryland Senator Chris Van Hollen has published photos of his meeting with Kilmar Ábrego García, whose case has sparked off an escalating showdown between the US president and the courts. Even though officials have acknowledged Mr Ábrego García was deported by mistake, they are refusing judicial orders to take steps to return him to the US. After the meeting, which appeared to take place in a hotel, El Salvador's President Nayib Bukele said the detainee would remain in the country's custody. The White House has accused Mr Ábrego García of being a member of the transnational Salvadoran gang MS-13, which his lawyer denies. Van Hollen, a Democrat, said he would share more information about his trip once he returned to the US on Friday. The White House called the visit "disgusting".

• BBC Verify: Here is what is known – and what is still unknown – about Mr Ábrego García and his alleged ties to MS-13, according to court documents and public records.

• Contempt of court: A showdown between the judicial and executive branch over the El Salvador deportations appears all but inevitable.

• Meanwhile, in Guantanamo Bay: The US has dismantled large parts of a camp built to house migrants, satellite images reviewed by BBC Verify show.

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How US guns flow to gang-ravaged Haiti

Gang members frequently pose on social media with high-calibre weapons. 

An investigation by BBC World Service and BBC Verify shows how weapons from the US reach Haiti by tracing the journey of two boxes filled with assault rifles and pistols. It reveals a chain of lax laws, absent checks and suspected corruption used by traffickers to bypass a UN embargo.