Amid protests, Venezuela's Maduro seeks to defuse court row

(Adds Maduro, start of security council meeting)

By Andrew Cawthorne and Girish Gupta

CARACAS, March 31 (Reuters) - Venezuela's President Nicolas Maduro promised on Friday to resolve within hours a controversy over the judiciary's annulment of congress which has sparked opposition protests and condemnation from around the world.

The Supreme Court's ruling this week that it was assuming functions of the opposition-led National Assembly was lambasted as a "coup" by critics. They viewed it as a lurch into dictatorship by the Socialist Party that has ruled for the last 18 years.

"I think today we can find a coherent, clear and constitutional solution that clears up doubts and disarms internal and external aggressions," Maduro said at a meeting of the state security council.

Seeking to project himself as above a fray between independent powers and presaging a rumored U-turn by the Supreme Court, Maduro said he had known nothing in advance of its ruling but would address the matter quickly.

Opposition leaders scoffed at that as a hypocritical response to international outrage against his government.

In a rare show of dissent from a senior official, Venezuela's powerful attorney general Luisa Ortega, long an ally of Maduro, rebuked the court earlier on Friday.

"It constitutes a rupture of the constitutional order," the 59-year-old said in a speech on state television. "It's my obligation to express my great concern to the country."

Throughout Friday, pockets of protesters blocked roads, unfurled banners and chanted slogans against Maduro's unpopular government, including "Freedom!" and "No To Dictatorship!"

In volatile western Tachira state, several dozen demonstrators tore up copies of court sentences in front of judicial buildings.

Having already shot down most of the National Assembly's measures since the opposition won control in 2015, the pro-Maduro Supreme Court on Wednesday said it was taking over the legislature's role because it was in "contempt" of the law.

The court went into session on Friday afternoon, further fueling rumors of a row-back to diffuse the controversy.

"The shameless criminals are going to overturn sentences 155 and 156 in the next few hours," said one opposition leader Henry Ramos, referring to this week's two key rulings on the assembly.

"They will have to do the same with the other 52," he added, referring to a raft of previous rulings shooting down congressional measures.

BONDS FALL

Venezuelan government bond prices fell sharply on the uncertainty.

Maduro, 54, a former bus driver and self-declared "son" of late leftist predecessor Hugo Chavez, was narrowly elected in 2013 amid widespread support for the ruling Socialist Party's oil-fueled welfare programs.