Ukraine Former Polish president and trade union icon Lech Walesa, mediating in the crisis in Ukraine that saw teachers strike and street rallies stretch into a fourth day, said he believed that "it is possible to arrive at a compromise." Ukraine Ukraine opposition leader Viktor Yushchenko appealed to the international community not to recognize the results of a presidential vote declared won by his pro-Russia rival. Iran Iran's promised suspension of uranium enrichment is not yet complete as it still wants to use 20 centrifuge devices for research, UN atomic agency chief Mohamed ElBardadei said, reporting a deadlock as his agency met on Tehran's nuclear program. Sudan One of the main rebel groups in Sudan's troubled Darfur region pledged to fully respect a truce with Khartoum amid a flurry of contradictory statements and international concern about an escalation in fighting. SAfrica A South African magistrate ordered Mark Thatcher, son of Britain's former prime minister, to return to court on April 8 to face charges that he helped finance an alleged coup plot in Equatorial Guinea. Russia Venezuelan President Hugo Chavez said that world oil prices should not be allowed to fall sharply, as he arrived in Moscow for a two-day visit, Interfax reported. Mideast Britain's Foreign Secretary Jack Straw pledged full support for the Palestinian election to find a successor to Yasser Arafat after paying homage to the veteran leader at his graveside. India Troops in revolt-racked Indian Kashmir have killed three suspected Muslim rebels and seized a huge cache of explosives, while rebels killed two policemen in an ambush, officials said. Sudan Officials from Sudan's government and main southern rebel movement are due resume talks in Kenya on Friday amid rebel doubts over Khartoum's commitment to sign a comprehensive accord by the end of the year. Iraq Insurgent attacks have been on the rise in the western Iraqi city of Ramadi after a massive US-led assault on nearby Fallujah drove many rebels out of that city, according to US military officials. Britain The dollar tumbled to new record lows against the euro at 1.3224 and to a four-year nadir against the yen at 102.41 yen, buckling under the strain of imbalances in the US economy, and sending gold to 16-year peaks.