Fighting between Cambodia and Thailand has entered its fifth day, with Cambodia accusing the Thai military of continued shelling and Thailand’s caretaker Prime Minister Anutin Charnvirakul confirming that he is scheduled to speak with United States President Donald Trump.

Thai forces allegedly carried out new attacks in three Cambodian provinces in the early hours of Friday morning, according to Cambodian news outlet The Khmer Times.

The newspaper reported that Thai forces opened fire in the Ta Moan, Ta Kra Bei and Thmar Daun areas of Cambodia’s Oddar Meanchey province.

It also reported Thai shelling in the Phnom Khaing and An Ses areas of the country’s Preah Vihear province, as well as the areas of Prey Chan Village and Boeung Trakuan in nearby Banteay Meanchey province.

No new casualties were reported following the renewed fighting.

At least 20 people have been killed across both countries, with nearly 200 more wounded, since fighting resumed on Monday.

An estimated 600,000 people have also been displaced on both sides of the Thai-Cambodia border since the breakdown of a peace agreement brokered by Trump in October.

In a Facebook post, Cambodia’s Ministry of Defence also rejected as “fake news” a claim from the Thai military that it was using foreign mercenaries to operate suicide drones in its attacks on targets in Thailand.

“The Ministry of National Defence of Cambodia would like to reject propaganda disseminated on the Thai 2nd Army Area Facebook page, which accused Cambodia of using foreigners to help launch FPV [first person view] drones in the Cambodian-Thai border conflict,” the ministry said.

Separately, the ministry also rejected accusations from Thai media outlets alleging that it was preparing to launch Chinese-made PHL-03 missiles in the border dispute.

The PHL-03 is a truck-mounted multiple rocket launcher that can fire guided and unguided rockets with a range of 70km to 130km (43.5 miles to 81 miles), according to a US military database, while Cambodia’s BM-21 Soviet-designed multi-rocket launchers have a range of just 15km to 40km (9.3 miles to 25 miles).

“Cambodia demands the Thai side to deliberately stop spreading false news in order to divert attention to its violations of international law by painting Cambodia as a pretext to use more violent weapons on Cambodia,” the Defence Ministry said.

The Southeast Asian neighbours accuse one another of reigniting the conflict that centres around a centuries-old border dispute along their 800-kilometre (500-mile) frontier, where both sides claim ownership over a smattering of historic temples.

The continued fighting involving artillery, fighter jets, tanks and drones comes as Thailand’s caretaker Prime Minister Anutin confirmed he was scheduled to speak with President Trump at 21:20 local time (14:20 GMT) on Friday.

Trump promised on Wednesday to reach out to the leaders of both countries, saying he thinks he “can get them to stop fighting”.

White House Press Secretary Karoline Leavitt said on Thursday that Trump had yet to call the Thai and Cambodian leadership, but added that “the administration is obviously tracking this at the highest levels and is very much engaged”.

Thailand’s top diplomat Sihasak Phuangketkeow spoke with US counterpart Marco Rubio on Friday ahead of the planned call between Trump and Anutin, Thailand’s foreign ministry said.

Sihasak told Rubio that Thailand was committed to a peaceful resolution, but said sustainable peace must be backed up by actions and genuine commitment, the ministry said in a statement, adding that Rubio confirmed US readiness to constructively promote peace.

Anutin also said his decision to dissolve parliament on Thursday – earlier than expected – would not affect the management of the ongoing border conflict.

The move comes following a breakdown in relations between Anutin’s Thai Pride Party and the opposition People’s Party, the largest bloc in the Thai legislature.

Government spokesperson Siripong Angkasakulkiat said a legislative impasse had paralysed the government’s agenda, meaning Anutin’s party “can’t go forward in parliament”.

Thailand’s King Maha Vajiralongkorn endorsed the dissolution, the country’s official Royal Gazette announced on Friday, making way for early elections.

The national polls must now be held within 45 to 60 days in Thailand.