Unable to kill Neo4j cypher queries from browser

Hi,
I am unable to kill certain queries from neo4j browser like the ones which have connections with JDBC. If the queries are long running and don't produce results then they keep running and I am unable to kill them from browser in both ways, either by using the :queries prompt or by using CALL dbms.killQuery(). Please help.

The query is of the below format:

WITH "jdbc:oracle:thin:x/y@" as url, "so and so" as query
CALL apoc.load.jdbc(url, query) YIELD row RETURN row

Please help.

Thanks,
Sridhar.