CARACAS, Venezuela (AP) - The Latest on Venezuela's political crisis over attempts to rewrite the constitution (all times local):

6:00 p.m.

Authorities in Venezuela say the Spanish Embassy in Caracas has been attacked with multiple homemade explosive devices.

A poster that shows some of Venezuela's opposition leaders holding a sign with a message that reads in Spanish: "That constituent assembly will not pass" is displayed on a wall near Altamira Square in Caracas, Venezuela, Thursday, Aug. 3, 2017. Venezuela's Nicolas Maduro defiantly dismissed allegations that official turnout figures for the election of an all-powerful constituent assembly were manipulated. Pictured in the poster are Henrique Capriles, left, Lilian Tintori, second left, Maria Corina Machado, second right, and National Assembly President Julio Borges, right. ( (AP Photo/Wil Riera)

Prosecutors report that two individuals on a motorcycle launched the devices described as gasoline bombs at the embassy Thursday.

Authorities have not said whether there are injuries or damage to the building. Police and agents from the prosecutor's office are investigating.

Venezuela has been gripped by months of protests and political upheaval amid President Nicolas Maduro's plans to rewrite the constitution.

A nearly all-powerful assembly charged with that task was elected Sunday and is expected to convene Friday.

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3:50 p.m.

Venezuela's chief prosecutor is seeking a court order to block Friday's planned installation of a nearly all-powerful assembly to rewrite the country's constitution.

Prosecutor General Luisa Ortega filed numerous complaints to the Supreme Court contesting the constitutionality of the new body designed by the socialist government. Those came before Sunday's vote to choose delegates - an election boycotted by the opposition and declared invalid by many international bodies.

Thursday's request was filed to a lower court, apparently in an attempt to circumvent the government-stacked Supreme Court. The request is almost certain to be denied.

President Nicolas Maduro says the assembly will hold its first meeting on Friday. Opposition forces say they plan large demonstrations to protest.

Opposition lawmaker Angel Medina, second right, arrives to the Venezuelan General Prosecutor's office to introduce a petition asking for an investigation into the recent constituent assembly elections in Caracas, Venezuela, Thursday, Aug. 3, 2017. Venezuela's Nicolas Maduro defiantly dismissed allegations that official turnout figures for the election of an all-powerful constituent assembly were manipulated, accusing the international software firm behind the claim of bowing to U.S. pressure to cast doubt over a body that he hopes will entrench an even more staunchly socialist state.(AP Photo/Wil Riera)

Opposition lawmakers Manuela Bolivar, left, enters the Venezuelan General Prosecutor's office to introduce a petition asking for an investigation into the recent constituent assembly elections in Caracas, Venezuela, Thursday, Aug. 3, 2017. Venezuela's President Nicolas Maduro defiantly dismissed allegations that official turnout figures for the election of an all-powerful constituent assembly were manipulated, accusing the international software firm behind the claim of bowing to U.S. pressure to cast doubt over a body that he hopes will entrench an even more staunchly socialist state.(AP Photo/Wil Riera)

FILE - In this March 5, 2014 file photo, Venezuela's President Nicolas Maduro and first lady Cilia Flores are surrounded by security guards during a military parade marking the one year anniversary of the death of Venezuela's former President Hugo Chavez in Caracas, Venezuela. The anniversary of Chavez's death was marked with a mix of street protests and solemn commemorations that reflected deep divisions over the Venezuela he left behind. (AP Photo/Rodrigo Abd, File