A prominent human rights group says the death toll from Syria's crackdown on a nine week long uprising has exceeded 1,000.

Ammar Qarabi of the National Organization for Human Rights in Syria said Tuesday his group has documented the names of 1,062 people who have died since the uprising erupted in mid-March.

Syrian President Bashar Assad appears determined to crush the revolt, which is challenging his family's 40-year-old dynasty.

The harsh crackdown has triggered international outrage and U.S. and European sanctions, including an EU assets freeze and a visa ban on Assad and nine members of his regime.