The Swedish coast guard announced Thursday that a fourth leak on the Nord Stream pipes had been observed off southern Sweden.
Off Sweden, according to Mattias Lindholm, a spokesman for the coast guard, “We have leakage at two places.” He added that there are two more off Denmark.
The other leaks are on Nord Stream 2, which was never put into service, while the other two are on the Nord Stream 1 pipeline, which recently stopped providing gas.
Both pipes had gas even though they weren’t used; the gas has now leaked and bubbled to the surface.
The Nord Stream pipelines cross the Baltic to move gas from Russia to Germany. The governments of Sweden and Denmark consider the leaks from their nations to have been “deliberate actions.”
Explosions were noted before the leaks were disclosed.
Seismologists discovered an initial explosion early Monday southeast of the Danish island of Bornholm.
The following evening, a second, more powerful blast northeast of the island was comparable to a magnitude-2.3 earthquake.
The explosions were recorded by seismic sensors in Finland, Norway, and Denmark.
According to several European officials and energy experts, Russia is likely to blame for any sabotage, as it directly benefits from rising energy costs and economic unease in Europe.
However, others have advised against making assumptions until investigators figure out what happened.
Swedish Prime Minister Magdalena Andersson said it would have taken a massive explosive device to do the damage in a statement on Wednesday before the fourth leak was revealed.