Update April 2, 2015 at 10:00pm: They have been released
Via Uncommon Sense and the Cuban Democratic Directorate:
Three former Cuban political prisoners -- Egberto Ángel Escobedo Morales, Jorge Luís García Pérez “Antunez” and Iván Fernández Depestre were arrested Wednesday as they left the Panamanian embassy in Havana, according to the Cuban Democratic Directorate.
Why the activists were at the embassy wasn't clear, but it probably is more than a coincidence that Panama next week will host the Summit of the Americas, which has been billed as the coming out party for normalized relations between Cuba and the United States. Several Cuban dissidents are expected to participate in side events during the summit designed to highlight the poor human rights situation on the island.
As of early Wednesday evening, the whereabouts of Escobedo, Antunez and Fernandez were not known.