At least 26 killed in anti-Prez protests in Congo: Human Rights group

Republican Guards were allegedly carrying out door-to-door searches and arresting youths

Security forces in Congo killed at least 26 demonstrators on Tuesday and arrested scores more amid protests against President Joseph Kabila's hold on power, a rights group said. The deaths were the first reported since Kabila's mandate that ended at midnight on Tuesday.

Military and police forces were firing live bullets, raising fears that more people have been killed, Human Rights Watch said. Its researcher Ida Sawyer said on Twitter that the killings took place in the capital, Kinshasa, the southern city of Lubumbashi and elsewhere. Residents told the group that Republican Guards were carrying out door-to-door searches and arresting youths.

Protesters burned the headquarters of the ruling party in Kinshasa.

Kabila, who took office in 2001 after his father's assassination, is constitutionally barred from seeking another term, but a court has ruled that he can remain in power until new elections, which have been delayed indefinitely. They were meant to be in November, but the ruling party says it needs more time until 2018, at least.

The leader of Congo's largest opposition party, Etienne Tshisekedi, urged peaceful resistance to what he called Kabila's "coup d'etat." In a statement posted on YouTube on Tuesday, he called the president's actions "treason" and appealed to the Congolese people and the international community to no longer recognise Kabila's authority.

Political talks between the ruling party and opposition, which stalled over the weekend, were expected to resume on Wednesday with mediators from the Catholic church.

The political impasse has fueled fears of widespread unrest in the vast Central African nation that has trillions of dollars' worth of natural resources but remains one of the world's poorest and most unstable countries.

After Kabila's mandate ended, people blew whistles and rattled pans as part of a protest meant to symbolise the "end of the match."

The political negotiations that stalled over the weekend failed to reach an agreement on a date for new elections or the release of political prisoners.

Both are key demands of the opposition parties, along with the dropping of criminal charges against opposition leader Moise Katumbi, who fled the country as authorities announced plans to try him.

Katumbi's supporters say the charges of hiring mercenaries are politically motivated, as he had been a leading presidential candidate.