A day after a significant tech meltdown at Lufthansa Airlines, the web sites of no less than three German airports had been disrupted on Thursday, based on Reuters.

Among the affected airports are Dusseldorf, Nuremberg and Dortmund. However, the web sites of Germany’s largest airports – in Frankfurt, Munich and Berlin – had been reportedly working usually.

“We are troubleshooting”, said a spokesperson for Dortmund airport, adding that it was unlikely that the failure was due to a regular overload.

“There is reason to suspect it could be a hacker attack,” the spokesperson informed Reuters.

Focus Online, which initially reported the outage, gave no cause for the issue.

Spiegel Online reported that the issues may have been brought on by a DDoS assault, the place excessive volumes of web visitors are directed to focused servers in a comparatively unsophisticated bid by so-called “hacktivists” to knock them offline.

The disruptions come a day after Lufthansa was forced to cancel more than 200 flights in Frankfurt alone on Wednesday leaving thousands of passengers stranded.

Lufthansa blamed botched railway engineering works that damaged broadband cables for the outage on Wednesday.

(With Reuters Inputs)

Read all of the Latest Tech News right here