Israeli warplanes return to the skies of the Gaza Strip and evoke memories of the three-week onslaught on the blockaded territory.
At least two sonic booms hit Gaza City and northern areas of the strip earlier on Sunday, Xinhua cited witnesses as saying.
Tel Aviv has previously resorted to sonic boom attacks on the Gazans for weeks on end, causing psychological disorders for thousands of Gazans -- mainly children.
"Around 50 percent of the children in Gaza are in need of mental health interventions," Gaza-based psychologist El Sarraj told Fars News Agency in a previous interview.
Israeli gunboats also opened fire on Palestinian fishing boats near the coast of Rafah city south of the territory. A number of the boats were reportedly damaged.
Similar attacks happen on Palestinian boats on a regular basis with a 20-month blockade being in place on the coastal sliver.
Israel brought a three-week war against the Gazan population on December 27 to allegedly stop Hamas rocket attacks but later declared a unilateral ceasefire on January 18 after failing to achieve its goals.
The Israeli assault killed nearly 1,350 Palestinians and wounded 5,450 others -- a large number of them women and children.
In spite of its ceasefire, Israel has been hitting targets in the Palestinian territory on a regular basis
