Palestinian resistance movement Hamas slammed as "immoral" Monday an EU appeal to keep it on the bloc’s terror blacklist, a month after a European court ordered its removal.

Palestinian resistance movement Hamas slammed as "immoral" Monday an EU appeal to keep it on the bloc's terror blacklist, a month after a European court ordered its removal.

"The European Union's insistence on keeping Hamas on the list of terrorist organisations is an immoral step, and reflects the EU's total bias in favor of the Israeli occupation," Hamas spokesman Sami Abu Zuhri told AFP.

"It provides it (Israel) with the cover for its crimes against the Palestinian people," he added.

Foreign ministers from the 28 EU member states decided at a Monday meeting to appeal the decision taken by the General Court of the European Union on December 17, the bloc's foreign policy chief Federica Mogherini said.

The ruling by the EU's second highest court had said that the blacklisting of Hamas in 2001 was based not on sound legal judgments but on conclusions derived from the media and the Internet.

Hamas had appealed against its inclusion on the blacklist on several grounds.