Jerusalem - Israel braced for fresh strikes and protests on Tuesday following a divisive parliamentary vote on a controversial judicial reform which has split the nation and drawn criticism from allies abroad.
The decision by Prime Minister Benjamin Netanyahu's hard-right government to push through a key plank of its reforms on Monday has already sparked legal challenges and clashes on the streets.
Opponents were set to keep up months of protests on Tuesday, with doctors walking out.
"The hand, extended for dialogue, was left hanging in the air, as victory celebrations took place symbolising above all a war that only has losers," the head of the Israel Medical Association, Zion Hagay, said in a statement announcing the walkout.
The move came after the Histadrut trade union confederation threatened a repeat of the general strike it called in March over the reforms.
Amid the instability, the Tel Aviv Stock Exchange (TASE) continued to fall Tuesday after slumping 2.21% the previous day.
The Israel Bar Association was among numerous groups to file petitions to the Supreme Court aiming to strike down the new legislation.
"A black day for Israeli democracy," read the blackened front pages of three of the country's top newspapers, which carried an advert by opponents of the judicial reforms.
Protesters remained on the streets late into the night following the vote, with student Josh Hakim saying he was "really, really sad about what's happening to this country".
"You see what is happening on the streets, everyone is so angry," he told AFP at a rally near parliament in Jerusalem.
Some 58 people were arrested at demonstrations, the police said, among them protesters in Tel Aviv, which has become the focal point of one of the country's largest-ever protest movements.
Police said one person was remanded in custody Tuesday for allegedly harming demonstrators, with protest organisers saying he drove a car into people blocking a highway.
Officers used water cannons to disperse protesters on a major road through Tel Aviv, where the crowd waved Israeli flags.
Opposition slams 'puppet' PM
Netanyahu failed to appease opponents with a televised address late Monday, in which he pledged to hold talks during the upcoming parliamentary recess.
"Reach a comprehensive agreement on everything and we will add more time should it be needed," he said.
The embattled premier showed signs of fatigue in the chamber, as he sat between his defence and justice ministers just a day after unscheduled surgery to fit a pacemaker.
Netanyahu defended the new law, which limits the powers of the Supreme Court in striking down government decisions, as a "necessary democratic step".
Deep divisions within his own coalition and mass protests prompted the premier to temporarily halt the legislative process in March, but within weeks politicians were blaming each other for the breakdown in negotiations.
On Monday, the opposition walked out of the chamber to boycott the vote, which passed with the support of 64 of its 120 lawmakers.
Opposition chief Yair Lapid slammed Netanyahu's "unprecedented performance of weakness".
"There is no prime minister in Israel. Netanyahu has become a puppet of messianic extremists," he said in reference to the premier's far-right and ultra-Orthodox Jewish allies.
The political instability has raised alarm among Israel's allies abroad.
The White House described the vote as "unfortunate".
A German foreign ministry source said: "We look with great concern at the deepening tensions in Israeli society."
AFP