. >> reporter: we learnt the action was nection to the berkin elvan investigation.erkin elvan is our son, our brother, his death saddening all of us. >> central into the investigation into how this unfolded is how they were able to get their weapons in the courthouse. al jazeera has been told that everybody going into the court is searched except the lawyers. >> berkin elvan's parent called on the gunmen not to kill the prosecutor. blood cannot be washed away with blood, they said. >>> in argentina, what began as a transportation strike has grown into a nation-wide protest. workers led by transit unions launched a 24 hour strike on tuesday bringing much of the city to a halt. flights cancelled. buses grouped and train services suspended. >> reporter: here at the buenos aires city international flights have been cancel as in the rest of the country until the 24 hour general strike ends. unlike the last strike in november this one has the pore and, in fact was organised by a powerful transportation unions. that means that argentina is effectively paralyzed. no planes

berkin elvan's parents call on the gunmen not to kill the prosecutor. blood cannot be watched away with blood, they said. >> in argentina, what began as a transportation strike grew into nationwide protests. workers launched a strike on tuesday bringing much of the city to a halt. train services were suspended. unions are demanding lower taxes, higher pensions and measures to fight inflation. the u.s. lifted a ban on military aid to egypt for what it says are national security reasons. president obama released assistance withheld from egypt after the ousting of mohamed mursi. m in addition the white house is asking congress to approve 1.3 billion in aid. egypt says it needs the help to deal with conflict in the sinead peninsula and neighbouring peninsula. rosalind jordan has more. >> the u.s. inspected delivery of certain military equipment to egypt in 2013, after the military's decision to obvious throw the president, mohamed mursi. even though the u.s. government is not considering what happened two years ago a coup. it's showing its disapproval for t