Reserves stand at around the US$45bn mark as the country works to bring them up to about 15% of GDP from around 10% currently.
José Domingo Arias was questioned Monday by Panamanian prosecutors about the allegations of illegal campaign financing made by two Brazilian publicists in March.
Chile's central bank expects weaker mining to hit GDP growth but the CDS spread falls; Peru's private sector revises GDP outlook; and Uruguay continues to see record low inflation.
Mexican consumer confidence continued to recover in May, while Chile's central bank lowers the growth outlook on GDP proxy data.
The ruling PRI party appears to have scraped out a narrow victory in the governor race in the state of Mexico - a strategically vital win ahead of the 2018 presidential race. However, the upstart Morena party could still win.