Azerbaijan dismisses the accusations, saying it was enforcing its own border and is committed to easing tensions.
Armenia’s leader has accused Azerbaijani troops of crossing the southern border and trying to stake claim to territory in a new escalation of tensions between the regional foes.
Nikol Pashinyan, the country’s acting prime minister, convened an emergency meeting of his security council on Thursday, saying Azerbaijan’s army had advanced more than three kilometres (two miles) into southern Armenia.
He said their neighbour was trying to “lay siege” to Lake Sev Lich that is shared by the two countries.
“It is an encroachment on the sovereign territory of the Republic of Armenia,” Pashinyan said. “This is an act of subversive infiltration.”
He said Armenian soldiers had responded with “appropriate