Five Palestinians living in the Gaza Strip have filed a legal complaint in Berlin against the German government over its delivery of weapons to Israel, an NGO representing them said Friday.

The complaint seeks to "revoke the export licenses issued by the German government for arms deliveries to Israel", the European Center for Constitutional and Human Rights (ECCHR) said in a statement.

A spokeswoman for the administrative court in Berlin confirmed it received the complaint late Thursday. The official added that the five plaintiffs live in different parts of the Gaza Strip, including Rafah.

The Palestinians are "challenging the authorization already granted for the delivery of anti-tank weapons" and seeking to stop deliveries that have not yet been authorized, the spokeswoman said.

The complaint is directed against the economy ministry, which now has two weeks to respond.

The five Palestinians have all had family members killed in Israeli missile attacks since Hamas attacks on Israel on October 7 set off the war, according to the ECCHR.

The plaintiffs say Berlin is failing to fulfill its obligations under international law, including the 1948 United Nations Genocide Convention.

"Germany cannot remain true to its values if it exports weapons to a war in which serious violations of international humanitarian law are evident," said Wolfgang Kaleck, general secretary of the ECCHR.

Germany is the second biggest arms exporter to Israel after the US, accounting for 30 percent of imports between 2019 and 2023, according to the Stockholm International Peace Research Institute (SIPRI).

Berlin is facing a case in the International Court of Justice in which Nicaragua says it is in breach of the UN Genocide Convention, set up after the Holocaust.

On Tuesday, Berlin's representatives insisted that Germany supplied arms only "based on detailed scrutiny... that far exceeds the requirements of international law".

Israel has launched a relentless military offensive on the Gaza Strip since the unprecedented attack by Hamas militants on October 7.

Around 1,160 people, mostly civilians, were killed in the Hamas attack, according to Israeli official figures.

Israel afterward vowed to eradicate Hamas, which controls the Gaza Strip. More than 33,000 people, mostly civilians, have died as a result, according to the Gaza health ministry.