Syria agreed Monday to Arab League demands that it allow observers into the country, but on the condition that the group immediately drop sanctions and agree to amendments that league officials have previously rejected.

The league's deadline for Syria to respond to its demands to admit observers or face additional sanctions expired at midnight Sunday.

Foreign Minister Walid al-Moallem sent a letter to Arab League Secretary General Nabil el-Arabi on Monday saying that by signing the agreement, Syria would consider all of the Arab League's resolutions on Syria void - including its suspension of the country and sanctions against it, the state-run SANA news service reported.