Morgan Tsvangirai, Zimbabwe's opposition leader, fearing for his safety, has taken refuge in the Dutch embassy in the capital Harare. Zimbabwean authorities said to respect the Vienna Convention on diplomatic relations of 1961 [PDF]
The embassy has diplomatic immunity and cannot be entered without permission of the ambassador.
Famous cases involving embassies are ; the Iran-US Hostage crisis in 1979, the Hungarian Cardinal József Mindszenty lived for 15 years in the American embassy in Budapest.
Keywords for more literature on diplomatic protection : Vienna Convention on diplomatic relations, Hostages, Iran, Diplomatic and consular protection