Frankfurt Airport

Germany was plunged into disarray on Thursday as strikes erupted across multiple fronts, disrupting travel plans for millions and compounding the economic challenges of a nation already mired in recession.

Bulgarian authorities said they had accepted the offers of all five international bidders for the concession for Sofia Airport, the Bulgarian transport authority confirmed on Thursday.

German airport association ADV warned that the strike action would "paralyze" the German flight network on Tuesday, reported DW. 

Frankfurt Airport operator Fraport canceled 570 of 1,200 flights at Frankfurt ahead of Tuesday's warning strike organized by the DBB and Verdi trade unions, who began their walkout at 2 a.m. local time (0100 UTC).

The Express - Frankfurt airport, Germany has evacuated passengers at Terminal 1 and closed several gates as police are delayed in the hub.

According to the German newspaper Bild, a police spokesman said an unauthorised person had got past the security area and disappeared.

He was reported to have a child with him an is now unauthorised inside Terminal One.

Thousands of passengers at four German airports, including the biggest hub Frankfurt, were stranded on Tuesday as ground staff and other public sector workers staged walkouts across the country to increase the pressure in a pay dispute.

An IT failure at Frankfurt airport could disrupt flights and result in cancellations on Tuesday, owner and operator Fraport said on its website, quoted by Reuters.