Security forces search for bodies from the scene of heavy flooding and mudslides in Regent, just outside of Sierra Leone's capital Freetown.
In a short statement, the EU external service said the Union was ready to help.
Sierra Leone began a week of mourning on Wednesday as it emerged that 105 children were among more than 300 people who perished in mudslides and torrential flooding, in one of the country's worst natural disasters.
President Ernest Bai Koroma fought back tears on Tuesday as he visited the devastated hilltop community of Regent, saying the scale of the challenge ahead was "overwhelming us".
"We can not wait for tomorrow for the burial, as was suggested by government because most of the bodies are decomposing", he said. He noted that, he was not surprise for such good-will gesture from the Chinese government and people because they are always one of the first to support Sierra Leone in times of hard moment.
Some 200 people are still missing from the mudslide, the agency said. The first Israeli aid packages arrived and west African governments delivered cash and rice.
Mr Koroma's office pleaded with residents to go to the morgue quickly to identify their dead loved ones otherwise all unidentified corpses will be given a "dignified burial" in mass graves.
"There is basic need for food, water, sanitation equipment and medical assistance".
"There is frustration with the regularity of the flooding and destruction during the rainy season", noted Ms. Fox.
Charitable organizations such as World Vision are offering emergency and health kits to heirs, consisting of water purification tablets to prevent threatening illness such as cholera and typhoid.
"It remains a priority to recover the remains of those who perished in the landslide, but also equally to help survivors and help the community", Saigal said.
"Everything is gone. We've lost everything - our house, everything".
Paolo Conteh, the interior minister, told Sierra Leone's state broadcaster that thousands of people remained missing.
The massive mudslide, which occurred on Monday morning following heavy rains, swept across a large area on the outskirts of Freetown, killing at least 297 people, over a third of them children, according to the latest update of casualties by the country's Emergency Response Centre.
The United Nations said on Tuesday it was evaluating the humanitarian needs in the West African country of seven million people.