The US has announced a $25m reward for the capture of Venezuela's Nicolás Maduro

The United States has announced a $25m (£20.4m) reward increase for information leading to the arrest of Venezuelan President Nicolás Maduro on the day he was sworn in for a third six-year term in office.

The coronation ceremony has been overshadowed by criticism from the international community and Venezuelan opposition leaders.

Rewards were also given for information leading to the arrest or conviction of Interior Minister Diosdado Cabello. A new award of up to $15m for Defense Minister Vladimir Padrino was also awarded.

The UK also imposed sanctions on 15 senior Venezuelan officials, including judges, members of the security forces and military officers.

The Foreign Office, Commonwealth and Development Office said those punished were guilty of “undermining democracy, the rule of law and violating human rights”.

The Foreign Secretary, David Lammy, went on to describe Maduro's regime as a “fraud”.

And on Friday, the EU said it was extending “restrictive measures” against Venezuela due to the “lack of progress… leading to the restoration of democracy and the rule of law”. The bloc also sanctioned 15 other Venezuelan officials.

Maduro and his government have repeatedly criticized the allegations made by Western countries and opposition leaders. He has not commented on the latest set of sanctions against him.

On Friday, President Maduro took the oath in front of the parliament, promising that his third six-year term in office would be “a period of peace”.

“This new term of the president will be a time of peace, success, equality, and new democracy,” he said.

“I swear on history, I swear on my life, and I will fulfill it,” he added.

The results of the July 28 election were widely rejected by the international community, including Brazil and Colombia, some of Venezuela's left-wing neighbors.

The ordination itself was a tightly controlled affair. Most of Venezuela's official media outlets were not allowed inside and foreign journalists were also not allowed in the country.

Maduro still has a few allies including Iran, China and Russia but is increasingly isolated from the country.

The presidents of Cuba and Nicaragua were the only leaders present at the inauguration.

The 62-year-old man was declared the winner of last July's presidential election but the opposition and many countries, including the US, rejected the result and recognized the exiled opposition candidate Edmundo González as the legitimately elected president.

González fled Venezuela in September and has been living in Spain, but this month he traveled to the United States to rally support abroad.

Maduro's government has issued a warrant for his arrest, offering a $100,000 (£81,755) reward for information leading to his arrest.

This happened just as Maduro was declared the winner of the July presidential election by the National Electoral Council (CNE) of Venezuela, which works closely with the government.

Machado, who was replaced by González on the ballot after being barred from running, is also a target. He went into hiding shortly after the disputed election, and was last seen in public in August ahead of Thursday's rally.

Additional reporting by Vanessa Silva.