This will leave investors guessing whether another rate hike is coming or if July marks the end of the ECB's fastest-ever tightening spree.
"The Governing Council will continue to follow a data-dependent approach to determining the appropriate level and duration of restriction," the ECB added.
While markets had fully priced in another rate hike just a few weeks ago, a growing number of investors are betting that Thursday's move will be the last.
More tightening would however be consistent with comments from a host of policymakers, including ECB board member Isabel Schnabel, that raising rates too far would still be less costly than not lifting them high enough.
This is a key reason why the balance of expectations has started to shift away from another rate hike, with economists increasingly focusing on how long rates will stay high.
Persons:
Isabel Schnabel, Jerome Powell, Christine Lagarde, Catherine Evans
Organizations:
European Central Bank, ECB, U.S . Federal Reserve, Thomson
Locations:
FRANKFURT