Censor.NET reports citing Deutsche Welle.
Frank-Walter Steinmeier once again expressed concern about violations of the cease-fire in eastern Ukraine and the risk of a new escalation of the conflict.
A spokesman for the German Foreign Ministry described it as "a case of dangerous brinkmanship".
"The repeated breach of the cease-fire agreed in Minsk is a case of dangerous brinkmanship in our view," Fischer said.
Fischer said Germany is calling on both sides to observe the cease-fire agreement and is in touch with all sides "to prevent the current situation from escalating further".
Both sides expressed serious concern over the continuing violations of the cease-fire by the opposing sides, which leads to new casualties, including those among the civilian population,Read also: Terrorists intensified aerial reconnaissance: 89 flights of enemy drones recorded over the week, - State Border Service