The group of Israelis were attacked around 5 a.m. on Saturday a spokesman for the Warsaw police told Reuters, adding that two of those attacked were hospitalized while four in total were injured.

WARSAW—Poland’s foreign ministry has condemned the violent attack against a group of Israeli students in a Warsaw nightclub on Saturday.

The group of Israelis were attacked around 5 a.m. on Saturday a spokesman for the Warsaw police told Reuters, adding that two of those attacked were hospitalized while four in total were injured.

“We noticed some pushing and shoving, and from the window we heard cursing,” Yotam Kashpizky, one of the students who was attacked, told Israel’s Channel 13 TV on Sunday, adding that his nose and eye socket were broken.

Kashpizky’s twin brother, Barak, condemned the attack in a Facebook post, adding that the attack was carried out by a “group of Arabs” shouting ‘’Free Gaza.’’ Pictures posted on Facebook showed Barak with a bloodied face and nose, and a closed eye.

“The Polish ministry of foreign affairs condemns acts of aggression carried out by or against foreigners in Poland. The matter of the beating of (Israeli) citizens by foreigners on Polish territory is being clarified by the police,” the ministry tweeted on Sunday.