Israeli arsonists set fire on Monday to an apartment housing Eritrean migrants, spray-painting \"get out of the neighborhood\" over the entrance in the latest flare-up of violence against immigration. \"Two people were lightly injured from smoke inhalation and were taken to hospital for treatment,\" police spokesman Micky Rosenfeld said, calling the blaze in a Jewish neighborhood of Jerusalem deliberate. \"A special investigation team was set up and police are searching for suspects,\" he added. Fleeing poverty, fighting and authoritarian rule, some 60,000 Africans have crossed illegally into Israel through the relatively porous desert border with Egypt in recent years. Israel says most come seeking work rather than refuge, but this has been challenged by UN humanitarian agencies and civil rights groups, making deportation legally problematic. Immigration to Israel is a controversial issue in a country which seeks to maintain a Jewish majority. Some Israelis warn of a gathering demographic and economic crisis while others say a country born after the Holocaust has a special responsibility to offer foreigners sanctuary. Street violence has surged in recent months against the migrants, including a rampage 10 days ago in a low-income Tel Aviv neighborhood where many migrants, from Eritrea, Sudan and South Sudan, live. The Israeli residents accuse the newcomers of being responsible for rising crime in their area. Last week, 11 minors were charged with a string of racially-motivated attacks against Africans in Tel Aviv. On Sunday, a law went into effect that will allow Israeli authorities to jail illegal immigrants for up to three years. The measure has been denounced by liberal politicians and human rights activists.