The United Nations chief says security in Afghanistan has not improved and that roadside bombings soared 94 percent in the first four months of this year compared with the same period in 2009.

The findings come in a quarterly report by Secretary General Ban Ki-moon to the U.N. Security Council. The U.N. mission in Kabul released the report Saturday.
In addition to roadside bombings, the report says suicide attacks occur at the rate of about three week, half of them in the ethnic Pashtun areas of the south.
Assassinations of Afghan officials also rose by 45 percent in the first four months of the year compared with the same time in 2009.