CAIRO/BERLIN (Reuters) - Egyptian President Mohamed Mursi flew to Germany on Wednesday to convince Europe of his democratic credentials, leaving behind a country in crisis after a wave of violence that has killed more than 50 people.
The Egyptian army chief warned on Tuesday that the state was on the brink of collapse if Mursi's opponents and supporters did not end the street battles that have marked the two year anniversary of the revolt that toppled autocrat Hosni Mubarak.
Because of the crisis, Mursi has curtailed the schedule of his European visit, cancelling plans to go to Paris after Berlin. He is due to return to Cairo later on Wednesday.
Near Cairo's Tahrir Square on Wednesday morning, dozens of protesters threw stones at police who fired back with teargas, although the scuffles were short-lived.
"Our demand is simply that Mursi goes, and leaves the country alone. He is just like Mubarak and his crowd who are now in prison," said Ahmed Mustafa, 28, a youth who had goggles on his head to protect his eyes from teargas.
Opposition politician Mohamed ElBaradei called for a meeting between the president, government ministers, the ruling party and the opposition to halt the violence. But he also restated the opposition's precondition that Mursi first commit to seeking a national unity government, which Mursi has so far rejected.
Mursi's critics accuse him of betraying the spirit of the revolution by keeping too much power in his own hands and those of his Muslim Brotherhood, the Islamist movement banned under Mubarak which won repeated elections since the 2011 uprising.
Mursi's supporters say the protesters want to overthrow Egypt's first democratically elected leader. The unrest has prevented a return to stability ahead of new parliamentary elections due within months, and worsened an economic crisis that has seen the pound currency tumble in recent weeks.
The worst violence has been in the Suez Canal city of Port Said, where rage was fuelled by death sentences passed against soccer fans for deadly riots last year. Mursi responded by announcing on Sunday a month-long state of emergency and curfew in Port Said and two other Suez Canal cities.
Protesters ignored the curfew and returned to the streets on Monday although the streets grew quieter on Tuesday. Human Rights Watch called for Mursi to lift the emergency decree.
Mursi will be keen to allay the West's fears over the future of the most populous Arab country when he meets German Chancellor Angela Merkel and powerful industry groups in Berlin.
"DISTURBING IMAGES"
"We have seen worrying images in recent days, images of violence and destruction, and I appeal to both sides to engage in dialogue," German Foreign Minister Guido Westerwelle said in a radio interview on Wednesday ahead of Mursi's arrival.
Germany's "offer to help with Egypt's transformation clearly depends on it sticking to democratic reforms", he added.
Germany has praised Mursi's efforts in mediating a ceasefire between Israel and Palestinians in Gaza after a conflict last year, but became concerned at Mursi's efforts to expand his powers and fast-track a constitution with an Islamist tint.
Berlin was also alarmed by video that emerged in recent weeks showing Mursi making vitriolic remarks against Jews and Zionists in 2010 when he was a senior Brotherhood official. Germany's Nazi past and strong support of Israel make it highly sensitive to anti-Semitism.
Westerwelle called Mursi's past anti-Jewish remarks "unacceptable. But at the same time President Mursi has played a very constructive role mediating in the Gaza conflict".
Egypt's main liberal and secularist bloc, the National Salvation Front, has so far refused talks with Mursi unless he promises to include opposition figures in a national unity government.
"Stopping the violence is the priority, and starting a serious dialogue requires committing to guarantees demanded by the National Salvation Front, at the forefront of which are a national salvation government and a committee to amend the constitution," ElBaradei said on Twitter.
Those calls have also been backed by the hardline Islamist Nour party - rivals of Mursi's Muslim Brotherhood. Officials from Nour and the Front were due to meet on Wednesday to discuss Nour's proposals, suggesting an unlikely alliance of Mursi's critics from opposite ends of the political spectrum.
Mursi has agreed to the opposition demand to explore changes to the constitution he passed in a referendum last year, but has so far resisted the Front's calls for a unity government.
Brotherhood leader Mohamed El-Beltagy dismissed the unity government proposal as a ploy for the Front to take power despite having lost elections. On his Facebook page he ridiculed "the leaders of the Salvation Front, who seem to know more about the people's interests than the people themselves".
German industry leaders see potential in Egypt but are concerned about political instability.
"At the moment many firms are waiting on political developments and are cautious on any big investments," said Hans Heinrich Driftmann, president of Germany's Chamber of Industry and Commerce.
Mursi's supporters blame the opposition for preventing an economic recovery by halting efforts to restore stability. The opposition says an inclusive government is needed to bring calm.
"The economy depends on political stability and political stability depends on national consensus. But the Muslim Brotherhood does not talk about consensus, and so it will not lead to any improvement in the political situation, and that will lead the economy to collapse," said teacher Kamal Ghanim, 38, a protester in Tahrir Square.
(Additional reporting by Yasmine Saleh and Marwa Awad in Cairo, Stephen Brown and Gernot Heller in Berlin and Arshad Mohammed in Washington; Writing by Peter Graff; Editing by Giles Elgood)