De Mistura says Must "renew the Ceasefire, We have to Accelerate Humanitarian Aid" and Convene U.s., Russia and Major Powers to Push Progress

"there Is Lots of Diplomatic Posturing and It's Normal", De Mistura says of Hnc Leaving Talks Early

Un Syria Envoy De Mistura says Geneva Peace Talks Will Continue Next Week, "we Cannot Let This Drop"

Brent Crude Futures Settle at $44.53/bbl, down $1.27, 2.77 Pct

U.s. fED s Mortgage-backed Securities Sales Were $0 Billion from Apr. 14-Apr. 20-Ny Fed