"In response to the unprecedented number of journalists killed and other repeated press freedom violations by the Israeli authorities since the start of the war, Reporters Without Borders (RSF) and 59 other organisations are calling on the European Union to suspend its Association Agreement with Israel and to adopt targeted sanctions against those responsible", the groups said in a joint statement.

The call came ahead of a meeting by EU foreign ministers in Brussels on August 29.

The period following Hamas October 7 attack and Israel's devastating assault on the Gaza Strip "has been the deadliest for journalists in decades", the letter said.

"More than 130 Palestinian journalists and media professionals have been killed by the Israeli armed forces in Gaza since 7 October. At least 30 of them were killed in the course of their work, three Lebanese journalists and an Israeli journalist have also been (killed) during the same period", it says.

"The targeted or indiscriminate killing of journalists, whether committed deliberately or recklessly, is a war crime", it said.

EU's association agreements with non-member countries are treaties that govern bilateral relations, including trade.

The agreement's Article 2 stipulates "respect for human rights and democratic principles", said Julie Majerczak, the head of RSF's Brussels office.

"The Israeli government is clearly trampling on this article. The EU, which is Israel's leading trade partner, must draw the necessary conclusions from this and must do everything to ensure that the (Prime Minister Benjamin) Netanyahu government stops massacring journalists and respects the right to information and press freedom by opening media access to Gaza," she said.

Among the signatories were the Committee to Protect Journalists (CPJ) and Human Rights Watch (HRW).