Libya fired the latest salvo Tuesday in a legal battle over the trial of Moammar Gadhafi’s son, officially asking world war crimes court judges to quash a surrender request and throw out the case.

"The Libyan government requests the Chamber to declare the case inadmissible and quash the surrender request," Libya's lawyers said in a document, filed before the International Criminal Court.

Israel's National Security Adviser Yaakov Amidror is holding talks with European officials ahead of the next round of talks over Iran's disputed nuclear program, a newspaper reported on Tuesday.

The report, in the left-leaning Haaretz daily, said Amidror's trip was linked to Israeli concerns that the talks between Iran and the P5+1 group of world powers could ultimately end with a deal that would allow Tehran to continue enriching uranium.

Bahraini activist Abdulhadi al-Khawaja, looking frail but alert, said he will keep up his hunger strike, the BBC reported on Tuesday after becoming the first media outlet to meet him in military hospital.

BBC security correspondent Frank Gardner and producer Mark Georgiou who said they were allowed to see him for five minutes "with his consent," described Khawaja as "thin but alert."

Libya on Tuesday opened voter and candidate registration centers, in another step towards its goal of holding elections for a constituent assembly in June.

"Registration for voters and candidates opened today," Nuri Abbar, head of the electoral committee, told Agence France Presse.

Egyptian security services foiled an Iranian plot to assassinate the Saudi ambassador to Cairo several months ago, the legal advisor of the kingdom's embassy said in local dailies on Tuesday.

Egypt "arrested three Iranians planning to assassinate the ambassador, Ahmed Qattan," Al-Hayat quoted Sami Jamal as saying.

The number of Iraqis killed in April increased from the previous month, but stayed near its lowest level since the 2003 U.S.-led invasion, according to official figures released on Tuesday.

In total, 126 Iraqis -- 88 civilians, 18 policemen and 20 soldiers -- died in attacks nationwide, figures compiled by the ministries of health, interior and defense showed.

Bahrain has denied entry to a member of the European parliament who the opposition said wanted to check on the situation of jailed hunger striker Abdulhadi al-Khawaja and other political prisoners.

Ana Gomes, who arrived in Bahrain on Sunday, "was denied an upon-arrival visa and was directed to secure a proper visa through official channels," Bahrain's official news agency BNA reported in an English-language statement.

Saudi Arabia beheaded on Tuesday two Bangladeshis convicted of killing and robbing a fellow citizen in the kingdom, the interior ministry announced.

Nujum Abdulshrif and Abdulmajed Hamza killed Mohammed Kabir, also Bangladeshi, the state news agency SPA reported quoting the ministry.

Ten civilians killed by regime mortar fire and 12 troops died in clashes with rebels were among 26 dead in Syria on Tuesday just hours after a new U.N. call for all sides to respect a troubled truce.

U.N. chief Ban Ki-moon said it was vital that government and opposition alike cooperate fully with a hard-won U.N. observer force as it fans out in its mission to shore up the ceasefire agreement that took effect on April 12.

The United States' deployment of cutting-edge F-22 fighter jets to the United Arab Emirates "will endanger the region's security," Iran warned on Tuesday.

"We do not in any way approve the presence of foreign forces in the region. We advise the regional countries against providing a basis for their presence," foreign ministry spokesman Ramin Mehmanparast told reporters.