An Afghan official says security forces killed two would-be suicide bombers in southern Helmand province Wednesday.

Provincial spokesman Dawood Ahmadi says the attackers tried to blow up a compound in Helmand's capital of Lashkar Gah used by a U.S.-based charity called International Relief and Development.

Guards killed the attackers before they could blow themselves up, but it was not immediately clear if anyone else was killed or wounded.

In a separate development, Afghan officials on Tuesday said the Afghan government will send more than 1,000 police officers to the southern city of Kandahar.

The announcement followed a series of coordinated suicide attacks by the Taliban that killed at least 35 people Saturday.

The Taliban called the attacks a warning to NATO's top commander, U.S. General Stanley McChrystal, who is planning the next major anti-Taliban offensive in the region.

In violence Tuesday, NATO said a roadside bombing killed two of its soldiers in southern Afghanistan.  The alliance did not give details of the attack or the soldiers' nationalities.

Some information for this report provided by AFP, AP and Reuters.