The phrase "a wave of assassinations" is correct and usable in written English.
It can be used to describe a sudden increase or surge in the number of assassinations occurring within a specific timeframe or context.
Example: "The country has been plagued by a wave of assassinations targeting political leaders and activists."
Alternatives: "a surge of killings" or "a spike in murders".
Security and government officials have been victims of a wave of assassinations.
The head of the Deir Ezzor political-security branch warned, "There may be a wave of assassinations".
A Social Democrat, he had to contend with a wave of assassinations carried out by the left-wing terrorist group the Red Army Faction.
But in 2005, Shiite gunmen, some in police uniforms, began carrying out a wave of assassinations in and around the city.
When the employers' violent reaction discredited the moderates in the CNT, it was followed by a wave of assassinations by gangsters employed by both the anarchists and the employers.
A United Nations investigative team reported this summer that Somali businessmen in Qatar had raised money and wired it, using a money transfer service, to a Shabab hit squad to finance "a wave of assassinations".
On Tuesday, Iraqi security officials said they uncovered a plot to bomb several ministries and other public places and to carry out a wave of political assassinations.
The face-off between Nicolás Maduro and his US-backed challenger Juan Guaidó has escalated dramatically after Venezuelan intelligence agents seized Guaidó's chief of staff and accused him of leading a "terrorist cell" plotting a wave of political assassinations.
BAGHDAD — A wide-ranging plot to bomb government ministries and other public places, to be followed by a wave of political assassinations, was uncovered by Iraqi officials, who responded Tuesday by bringing much of Baghdad to a virtual standstill while security forces conducted raids that netted large quantities of explosives, officials said.
BAGHDAD — The Islamic State is creeping back into parts of central Iraq just seven months after the government declared victory in the war against the group, embarking on a wave of kidnappings, assassinations and bombings that have raised fears that a new cycle of insurgency is starting again.
Nigeria's militant Islamist group Boko Haram - which has caused havoc in Africa's most populous country through a wave of bombings, assassinations and abductions - is fighting to overthrow the government and create an Islamic state.
