A spokesperson for the US State Department said "a US military member" had been detained in Venezuela.
They were under questioning for several hours by police and waved pictures of Yuli Edelstein.
Pakistani police detained several lawmakers from Imran Khan's party after a major rally demanding his release led to clashes.
Sunday and Monday, which saw some of the largest protests over the course of the week, also had the most arrests. Some 45 people were arrested on Sunday and 40 were arrested Monday.
UKLFI stated on their website that Khan is "breaching these rules by misleading the Court" and accused the prosecutor of "failing to update and correct information previously provided."
Lebanon's ex-central bank governor, Riad Salameh, was arrested in Beirut on financial crimes charges, including money-laundering and embezzlement.
Police found that he had arrived in Greece on July 20 using the fake document.