The United Arab Emirates voiced concern on Saturday over Germany's release of a suspected Israeli spy on bail in a case over a falsified passport linked to the killing of a Hamas leader in Dubai.

On Friday, German authorities released Uri Brodsky, pending a decision on whether he was involved in the falsification of the German passport linked to the killing.

Abdurahim al-Awadhi, a top UAE Foreign Ministry official, 'expressed concern that Brodsky has been released on bail and granted the freedom to return to Israel while the case against him continues', the state news agency WAM said.

'The UAE seeks assurances that Brodsky is in no way connected with the murder of Mahmoud al-Mabhouh in Dubai,' Awadhi said in a statement cited by the agency.

A spokesman for state prosecutors in Cologne said on Friday that Brodsky would not have to stand trial in Germany. The court had a range of options it could pursue against Brodsky and that the most likely option was a fine, he said.

Brodsky was extradited from Poland on Thursday on suspicion of fraudulently obtaining a German passport believed to have been used by a member of the hit squad that Dubai says killed Mabhouh in a hotel room in January.

The hit squad used fraudulent British, French, Irish and Australian as well as German passports, according to Dubai.

Mabhouh, born in the Gaza Strip, had lived in Syria since 1989 and Israeli and Palestinian sources have said he played a role in smuggling Iranian-funded arms to militants in Gaza.-Reuters