Getting a foothold in neighboring countries is a way for Iran to exert influence.
Israel struck two alleged terrorist military posts after a rocket from Gaza was aimed at Israel but missed.
Starting earlier this month, protesters blocked a main highway into the capital city Islamabad and called for the country's law minister to resign.
The Egyptian military said it hit "terrorist" targets with airstrikes following the attack.
A spokesperson for the Zimbabwean Defense Forces told CNN the military reached an agreement with Mugabe for immunity and protection.
An official told outlets the vessel only has enough oxygen to last around seven days if it's submerged and can't raise a tube for air.
President Robert Mugabe's own party ousted him as president on Sunday and gave him until Monday to step down.
The submarine San Juan has been radio silent since Wednesday, when the vessel was last seen.
Outlets report no one has heard from the ARA San Juan or the 44 crew members aboard since Wednesday.
Military personnel took over the country's state-run TV station to broadcast a message that it was targeting "criminals" around the president.
Tanks and other military vehicles were seen on roads leading to the capital city earlier day Tuesday.
Twenty-three of the European Union's 28 members have signed on to be a part of the pact.