A cyber attack on London hospitals has resulted in the postponement of more than 1,000 NHS surgeries

More than 1,000 planned operations and over 3,000 outpatient appointments have been postponed due to the ongoing disruption caused by a cyberattack that has hit London hospitals.

Synnovis, an agency that manages laboratories for NHS trusts and GPs in south-east London, was the victim of a data hack on 3 June.

New numbers NHS England figures show that 3,396 appointments and 1,255 elective procedures have been postponed since then.

In a statement, directors of the two trusts concerned said they continued to treat the attack as a “critical incident”.

Figures published on Thursday showed that between June 17 and 23, the two worst-affected hospitals – King’s College Hospital NHS Foundation Trust and Guy’s and St Thomas’ NHS Foundation Trust – canceled 1,300 outpatient appointments and 205 elective procedures.

This is because medical practices in London are also warned of ongoing impact of cyberattackand blood tests remain at a fraction of its former capacity.

In a joint statement, Julie Lowe, deputy chief executive of King’s College Hospital NHS Foundation Trust, and Dr Simon Steddon, medical director of Guy’s and St Thomas’ NHS Foundation Trust, said: “We are currently having to postpone a number of operations and appointments and would like to apologise again to all patients affected.

“Staff continue to do great work in very difficult circumstances and they deserve huge credit.”