Thousands of people gathered in the centre of Helsinki on Sunday afternoon in support of the Palestinian people.
According to the organisers of the event, around 4,000 people participated in the demonstration.
The protestors' demands included calling for an end to Israel's military action in Gaza and to the killing of Palestinian civilians. Many placards also criticised the Finnish government for agreeing to buy a missile defence system from Israel for a reported 316 million euros.
"We call on the government to address the genocide in Gaza. The Finnish government could call for a ceasefire. Another concrete action would be to not promote arms trading with Israel," organiser Sadek Elwan told Yle.
Elwan added that while he was born in Finland, his family roots are in Gaza.
He noted that more than 10,000 Palestinians have already died, based on figures provided by the Hamas-run health ministry in Gaza, among them some of his own relatives.
"At the moment, there is not a single Gazan, a Palestinian, in Finland who has not lost a relative there," he said.
Other participants told Yle that they had joined the demonstration to appeal for either an end to the conflict, or a humanitarian break in the hostilities.
"We are calling for a ceasefire to allow humanitarian aid to reach Gaza," Suhuur Jama said.
"The Palestinian people have not received the necessary support from Finland. All trade activity must stop until Gaza is free and the oppression of the Palestinian people ends," Sahra Jama added.
Sadek Elwan noted there have been several demonstrations held across Finland in recent weeks in support of the Palestinian people.