Members of Israel's Arab minority led a mass protest in central Tel Aviv on Saturday night against a contentious new law that critics say marginalises the state's non-Jewish citizens.

The rally marked the latest stage in a fallout from the Nation-State law and came a week after thousands of Druze, also members of the Arab minority, packed the same city square to voice opposition to the bill.

Israel's 1948 declaration of independence defined the country as a Jewish and democratic state and the government says the recently passed bill merely enshrines the country's existing character.

But critics say it undercuts Israel's democratic values and sidelines the country's non-Jewish population, namely the Arab community that makes up 20 per cent of the country.

One clause downgrades the Arabic language from official to "special" standing.

The law has bitterly divided the parliament, sparked mass protests in Tel Aviv and even drawn criticism from the country’s president and attorney-general. Several of the articles have been dubbed racist against the country’s 1.8 million Arabs

Israeli parliament adopts contentious new law defining itself as Jewish nation

Israeli media reported tens of thousands of Jews and Arabs attended the protest. Some Arab protesters waved Palestinian flags and others held signs reading "equality”. Some knelt and preformed Muslim prayers.

Benjamin Netanyahu, Israel’s prime minister, posted footage on Twitter of protesters waving the Palestinian flags. "No better testament to the necessity of the Nation State law," he wrote.

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Ayman Odeh, an Arab member of the Israeli parliament, said: "This is the first time that tens of thousands of Arabs have come to Tel Aviv with Jewish democratic groups.

“They came to say this is not the end of the demonstrations, but the first serious demonstration against the Nation State law."

Many Jewish Israelis, including top retired security officials and politicians, have also criticised the law.

The rally marked further fallout from the explosive Nation-State law (Reuters)

Omar Sultan, from the Arab city of Tira in central Israel, said he was protesting to send a message to Mr Netanyahu.

"This law is against us, against the Arabic language, against peace, against our future in this land, we are the real people of this land, we can't agree on this law," he said.

Israel's Arab citizens enjoy full citizenship rights but face discrimination in some areas of society like jobs and housing.

They share the ethnicity and culture of the Palestinians in the West Bank and Gaza Strip and often identify with Palestinian nationalism, rather than Israeli.